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1T6-520 pdf - Application Performance Analysis and Troubleshooting Updated: 2023

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Exam Code: 1T6-520 Application Performance Analysis and Troubleshooting pdf June 2023 by Killexams.com team
Application Performance Analysis and Troubleshooting
Network-General Troubleshooting pdf

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1T6-303 TCP/IP Network Analysis and Troubleshooting
1T6-323 Microsoft Windows 2000 Network Analysis and Troubleshooting
1T6-510 Troubleshooting with Sniffer Portable/Sniffer Distributed
1T6-511 Network Analysis and Troubleshooting
1T6-520 Application Performance Analysis and Troubleshooting
1T6-521 Application Performance Analysis and Troubleshooting
1T6-530 TCP/IP Network Analysis and Troubleshooting
1T6-540 Advanced Troubleshooting with InfiniStream Network Mgmt

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Application Performance Analysis and Troubleshooting
Answer: B
Question: 113
A large Window size used by a client could cause __________.
A. The server to consume more resources
B. Increased number of ACKs to be sent
C. Increased delay when frames are lost
D. None of the above
Answer: D
Question: 114
The slowest component on a server will be _______.
A. Random Access Memory (RAM)
B. Disk I/O
C. Central Processing Unit (CPU)
D. The constraint (bottleneck)
Answer: D
Question: 115
Round-trip distance latency between San Diego and Salt Lake City (1,850 miles or 2,960
km) is __________.
A. About 17 microseconds
B. About 33 milliseconds
C. 0.016.818 seconds
D. Can not be calculated with the information provided
Answer: B
Question: 116
A well documented application profile may be used to _________.
A. Identify constraints in the design of the network
B. Document how an application will perform on the network
C. Identify the constraints (bottlenecks) that will affect application performance
D. All of the above
Answer: D
Question: 117
Bandwidth latency can be calculated for a complete user task.
Answer: A
Question: 118
When applying the predictive analysis model to an application we need to include
__________ in our analysis.
A. Statistics from the Sniffer Expert Connection layer
B. Speed of the slowest link between client and server
C. TCP window size
D. All of the above
Answer: D
Question: 119
The number of application turns involved in a conversation where the window size is 8760
and the data transmitted is 642,400 would be __________.
A. 36
B. 42
C. 73
D. 87
Answer: C
Question: 120
A bandwidth consumption graph can help us determine __________ without constraint.
A. The total amount of data sent by the client
B. The total amount of data sent by the server
C. The maximum amount of data sent on a bits per second basis
D. The maximum amount of data needed by the client
Answer: C
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Tue, 20 Feb 2018 20:39:00 -0600 en-US text/html https://www.globalspec.com/reference/79717/203279/6-1-general-troubleshooting-safety-practices
Intelligent People May Actually Need More Time To Solve Difficult Problems

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Do intelligent people think faster? Researchers at the BIH and Charité – Universitätsmedizin Berlin, together with a colleague from Barcelona, made the surprising finding that participants with higher intelligence scores were only quicker when tackling simple tasks, while they took longer to solve difficult problems than subjects with lower IQ scores.

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In personalized brain simulations of the 650 participants, the researchers could determine that brains with reduced synchrony between brain areas literally “jump to conclusions” when making decisions, rather than waiting until upstream brain regions could complete the processing steps needed to solve the problem. In fact, the brain models for higher score participants also needed more time to solve challenging tasks but made fewer errors. The scientists have now published their findings in the journal Nature Communications.

There are 100 billion or so neurons in the human brain. Each one of them is connected to an estimated 1,000 neighboring or distant neurons. This unfathomable network is the key to the brain’s amazing capabilities, but it is also what makes it so difficult to understand how the brain works.

Prof. Petra Ritter, head of the Brain Simulation Section at the Berlin Institute of Health at Charité (BIH) and at the Department of Neurology and Experimental Neurology of Charité – Universitätsmedizin Berlin, simulates the human brain using computers. “We want to understand how the brain’s decision-making processes work and why different people make different decisions,” she says, describing the current project.

Personalized brain models

To simulate the mechanisms of the human brain, Ritter and her team use digital data from brain scans like magnetic resonance imaging (MRI) as well as mathematical models based on theoretical knowledge about biological processes. This initially results in a “general” human brain model. The scientists then refine this model using data from individual people, thus creating “personalized brain models.”

For the present study, the scientists worked with data from 650 participants of the Human Connectome Project, a U.S. initiative that has been studying neural connections in the human brain since September 2010. “It’s the right excitation-inhibition balance of neurons that influences decision-making and more or less enables a person to solve problems,” explains Ritter. Her team knew how participants fared on extensive cognitive tests and what their IQ scores were.

Artificial brains behave like their biological counterparts

“We can reproduce the activity of individual brains very efficiently,” says Ritter. “We found out in the process that these in silico brains behave differently from one another – and in the same way as their biological counterparts. Our virtual avatars match the intellectual performance and reaction times of their biological analogues.”

Interestingly, the “slower” brains in both the humans and the models were more synchronized, i.e., in time with one other. This greater synchrony allowed neural circuits in the frontal lobe to hold off on decisions longer than brains that were less well coordinated. The models revealed how reduced temporal coordination results in the information required for decision-making neither being available when needed nor stored in working memory.

Gathering evidence takes time – and leads to correct decisions

Resting-state functional MRI scans showed that slower solvers had higher average functional connectivity, or temporal synchrony, between their brain regions. In personalized brain simulations of the 650 participants, the researchers could determine that brains with reduced functional connectivity literally “jump to conclusions” when making decisions, rather than waiting until upstream brain regions could complete the processing steps needed to solve the problem.

Participants were asked to identify logical rules in a series of patterns. These rules became increasingly complex with each task and thus more difficult to decipher.In everyday terms, an easy task would consist of quickly braking at a red light, while a hard task would require methodically working out the best route on a road map. In the model, a so-called winner-take-all competition occurs between different neural groups involved in a decision, with the neural groups for which there is stronger evidence prevailing. Yet in the case of complex decisions, such evidence is often not clear enough for quick decision-making, literally forcing the neural groups to jump to conclusions.

“Synchronization, i.e., the formation of functional networks in the brain, alters the properties of working memory and thus the ability to ‘endure’ prolonged periods without a decision,” explains Michael Schirner, lead author of the study and a scientist in Ritter’s lab. “In more challenging tasks, you have to store previous progress in working memory while you explore other solution paths and then integrate these into each other. This gathering of evidence for a particular solution may sometimes takes longer, but it also leads to better results. We were able to use the model to show how excitation-inhibition balance at the global level of the whole brain network affects decision-making and working memory at the more granular level of individual neural groups.”

Findings are interesting for treatment planning

Ritter is pleased that the results observed in the computer-based “brain avatars” match the results seen in “real” healthy subjects. After all, her main interest is in helping patients affected by neurodegenerative diseases like dementia and Parkinson’s disease. “The simulation technology used in this study has made significant strides, and can be used to Improve personalized in silico planning of surgical and drug interventions as well as therapeutic brain stimulation. For example, a physician can already use a computer simulation to assess which intervention or drug might work best for a particular patient and would have the fewest side effects.”

Reference: Schirner M, Deco G, Ritter P. Learning how network structure shapes decision-making for bio-inspired computing. Nat Commun. 2023;14(1):2963. doi:10.1038/s41467-023-38626-y

This article has been republished from the following materials. Note: material may have been edited for length and content. For further information, please contact the cited source.

Thu, 01 Jun 2023 20:31:00 -0500 en text/html https://www.technologynetworks.com/neuroscience/news/intelligent-people-may-actually-need-more-time-to-solve-difficult-problems-374150
Why Can’t I Connect to a Network is a tool to Diagnose Network Problems

Network problems? What could be the reason? It is just like being a detective and solve a mystery case – but who wants to be a James Bond when you’ve got a software like Why Can’t I Connect. WCIC is an easy and handy tool that lets you diagnose network issues and even helps you resolve TCP/IP connection errors. This tool will let you connect to various kinds of servers and would perform an incoming and outgoing test to diagnose the network for any problems and related issues.

WCIC is an open-sourced utility licensed under GNU public license. It is easy to use and operate the utility. It has basic and essential features that are very useful while diagnosing network problems in different types of servers.

Why Can't I Connect to a Network

Using this software you can connect to the following types of servers:

Microsoft SQL Server: WCIC would create a TCP/IP connection to any Microsoft SQL Server you want. What you simply need to enter is IP Address and Port of the server. But remember WCIC would not verify the server username or password, it would only make a connection to the server.

MySQL Server: It would make a similar connection as it made with Microsoft MySQL Server.

FTP and SFTP: WCIC can even diagnose network problems with FTP and Secure FTP servers. Simply you need to enter the IP address and the port only!


POP3 and IMAP: Email protocols like POP3 and IMAP can even be diagnosed using this wonderful software, for these you need to enter the server IP address and choose between STARTTLS and SSL/TLS and enter the corresponding port numbers. But remember it would not attempt to verify the username and password.

It can even diagnose other servers like IRC, LDAP and Usenet. Why Can’t I connect to create a complete log of performed operations and you can export the log by copying everything, and you can save it as a record for the future.

Overall Why Can’t I Connect is a must-have utility, as it has the essential features that are required while diagnosing the network problems experienced in different servers – and it is even useful for various testing features like if you want to test whether a server is live or not. It is easy to use and doesn’t require any geeky configuration and commands.

Click here to obtain Why Can’t I Connect.

The built-in Network & Internet Diagnostic & Repair Tool is another tool that you may want to have a look at.

Why Can't I Connect to a Network
Thu, 03 Feb 2022 20:15:00 -0600 en-US text/html https://www.thewindowsclub.com/why-cant-i-connect-network
Wi-Fi problems? Here’s how to diagnose your router issues

Whenever someone sends me a question about how to fix their Wi-Fi, I wince. It’s not that I dislike helping people with their router problems. In fact, there are few geeky endeavors I find more rewarding than fixing Wi-Fi connection issues at a friend or family member’s home.

But Wi-Fi has always felt more like a dark art than a science, and it’s an art that’s hard to conjure without being physically present. Potential points of failure are everywhere, and what works well in one home might not in another. Even the reviewers of networking gear can reach drastically different conclusions about the very same product.

Wi-Fi is fundamentally at odds, then, with my desire to answer questions with specific recommendations. The best I can do is walk your through how I diagnose Wi-Fi problems myself. That way, you can make better decisions on whether (and how) to upgrade your own gear.

Further reading: The best mesh Wi-Fi routers

Size up the Wi-Fi problem

The first step to solving Wi-Fi issues is to see if the slowdown is coming from your cable modem (which brings internet service into the home) or from the router (which distributes Wi-Fi connectivity throughout the home).

Start by plugging a computer directly into your modem with an ethernet cable and running a speed test. (The easiest way is to do a Google search for “speed test,” then hit the blue “Run Speed Test” button atop the search results.) A USB-to-Ethernet adapter will be necessary for testing on computers that don’t have an ethernet port, but if that’s too much trouble or you don’t have a proper computer at all, you can also try calling your internet provider and asking them to test your internet speed remotely.

Google speed test tool

Running speed tests throughout the house can help you figure out where the Wi-Fi trouble spots are.

Jared Newman / Foundry

If wired connection speeds are on par with your internet provider’s advertised speeds, the next step is to start running speed tests throughout the house. Measure speeds around the area where connectivity feels slow, then work your way back to where the router is located, running multiple tests in each area as you go.

The goal here is to figure out where your connection troubles are occurring. Consistently slow speeds throughout the house may be a sign of an outdated router, while dead zones or range issues may require a more powerful router or mesh Wi-Fi system. (More on that shortly.)

Find your Wi-Fi router’s 802.11 version

To figure out whether a router needs replacing, it helps to know how old it is. One way to do this to locate the router’s model number—it’s likely printed on the router itself—then search the web for info about which version of Wi-Fi it supports. Here are the major Wi-Fi versions to know about:

  • 802.11a/b/g: Extremely old and almost certainly the source of all your Wi-Fi problems.
  • 802.11a/b/g/n (or just 802.11n): Outdated at this point and a solid candidate for replacement. Many of these routers only support a single frequency band that’s slower and more congestion-prone, and “dual-band” variants have limited range on the faster 5 GHz frequency band.
  • 802.11ac (also marketed as Wi-Fi 5): Not the latest standard, but still widely available even in some high-performance routers.
  • 802.11ax (or Wi-Fi 6): Routers using this standard started shipping in late 2020, so your router is likely quite new.
  • Wi-Fi 6E: Congrats, you probably just bought a new router.

Wi-Fi versions alone aren’t an indicator of quality—a cheap Wi-Fi 6 router can be worse than a high-end mesh system with Wi-Fi 5—but each successive version has introduced new features that Improve connectivity, and we’ve generally seen a push toward better performance over time.

Try some smaller router fixes

Just to rehash a tip I discussed back in July, sometimes changing your router’s channel and bandwidth settings can work wonders for reducing Wi-Fi interference, especially if you’re seeing inconsistent speeds on devices that aren’t too far from the router. By digging into your router’s settings, you can bypass automatic channel selection and find a channel that might be less congested.

You can also try some other little tweaks, like getting your router off the ground and clearing some space around it—but I wouldn’t start rearranging your room for the router’s sake. Chances are the improvements will be minimal. Of course, moving your router to a more central location in the home can help, but that would likely require having the cable company rewire your home internet connection.

Wi-Fi extenders: a last resort

TP-Link extender
An extender can help squeeze more range out of your router, but it’s not a panacea.


Because replacing a router is a pain, a lot of folks wonder if they can just solve their problems with a Wi-Fi extender or repeater, which take the wireless signal from a router and rebroadcast it farther away. (“Extender” sometimes refers to a device with a wired connection to the router, though I often see both terms used interchangeably.)

My experience with Wi-Fi extenders is hit or miss. Wireless repeaters will always degrade whatever signal they receive, so the benefits can cancel out if you’re trying to address a dead zone or interference from other nearby wireless devices. The same is true with powerline adapters, which send a wired ethernet connection from your router to another part of the house through your wall outlets. Depending on how your house is wired, this approach can give you a weak connection or not work at all.

I don’t tell people to avoid extenders outright, because they can work in some scenarios, but keep your expectations low and be prepared to return the device if it doesn’t help. Here’s how to set up a Wi-Fi extender if you decide to go that route.

Picking a new Wi-Fi router

Once you’ve concluded that it’s time to replace your router, then what?

A mesh Wi-Fi system will be the surest way to solve your Wi-Fi problems, especially in larger homes or ones with lots of dead zones. These systems let you plug in multiple access points throughout the house, creating one big network. They’re better at managing connections than a router with an extender, and systems advertised as “Tri-Band” can connect each access point without congesting the rest of the network.

Such systems might not be necessary, though. If you haven’t replaced your router in a while, even a new standalone router might be enough to power through dead zones if they’re not too far away. Standalone routers are generally less expensive than mesh systems, and some have features that mesh systems lack, such as USB storage support or a large number of ethernet ports.

Ultimately, though, there’s no way to tell for sure if a new router will work without trying it yourself. You can read all sorts of reviews—PCWorld reviews both Wi-Fi mesh systems and the latest Wi-Fi 6E routers—but even the best advice isn’t one-size-fits-all. Buying a new router will always involve a leap of faith.

A note on modem/router combos

Finally, there’s one more complicating factor: Although cable companies used to distribute internet modems and routers separately—the former bringing in the internet from outside the house, and the latter to distributing Wi-Fi through the home—it’s increasingly common now to get both functions in one box. That makes installation easier for the cable company, but makes router replacement trickier for you.

If you have a combo box and are paying for it in rental fees, consider replacing it with two devices: A new router and a separate cable modem. But be aware that some companies—particularly fiber-optic internet providers such as AT&T and Verizon—make replacing the modem component difficult or impossible.

If replacing the modem isn’t possible or necessary, you can just disable its Wi-Fi features so they don’t interfere with your new router. The instructions for doing so can vary by provider, so expect to do some Googling of “modem mode” or “bridge mode” plus the name of your internet provider.

And if you’re still having Wi-Fi problems after all that, send me an email and I’ll do my best to help. You can also check out my Advisorator newsletter—where a version of this story first appeared—to get more practical tech advice every week.

Editor’s note: This article has been updated with up-to-date product recommendations.

Sat, 13 May 2023 08:44:00 -0500 Author: Jared Newman en text/html https://www.pcworld.com/article/695032/how-to-fix-wifi-router-issues.html
300 Problems in Special and General Relativity

Einstein's theories of special relativity and general relativity form a core part of today's undergraduate (or Masters-level) physics curriculum. This is a supplementary problem book or student's manual, consisting of 150 problems in each of special and general relativity. The problems, which have been developed, tested and refined by the authors over the past two decades, are a mixture of short-form and multi-part extended problems, with hints provided where appropriate. Complete solutions are elaborated for every problem, in a different section of the book; some solutions include brief discussions on their physical or historical significance. Designed as a companion text to complement a main relativity textbook, it does not assume access to any specific textbook. This is a helpful resource for advanced students, for self-study, a source of problems for university teaching assistants, or as inspiration for instructors and examiners constructing problems for their lectures, homework or exams.

Fri, 25 Mar 2022 04:22:00 -0500 en text/html https://www.cambridge.org/core/books/300-problems-in-special-and-general-relativity/9CF1D0B340CBD91F2279F5EC054DF900
The Learning Network No result found, try new keyword!By The Learning Network Middle and high school students ... By Katherine Schulten The United States surgeon general issued an extraordinary public warning that could bring changes to how young ... Sun, 04 Jun 2023 20:02:00 -0500 en text/html https://www.nytimes.com/section/learning Quitting Smoking Could Boost Your Mental Health

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Published in JAMA Network Open, the findings revealed that smoking abstinence between weeks nine and 24 was associated with significant improvements in anxiety and depression scores.

Led by a team of researchers at Oxford University’s Nuffield Department of Primary Care Health Sciences, the study employed rigorous analytical approaches to assess changes in mental health following smoking cessation.

The study used data from a large, randomized clinical trial, the Evaluating Adverse Events in a Global Smoking Cessation Study (EAGLES) which occurred in 16 countries at 140 centers between 2011 and 2015. However, only data from US-based participants were used for this secondary analysis. The study involved adults with or without a psychiatric disorder who smoked. A total of 4,260 participants were included in the analysis, with 55.4% having a history of mental illness.

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Angela Wu, lead author and Researcher in the Nuffield Department of Primary Care Health Sciences, University of Oxford, said: ‘While we are seeing a large decrease of smoking rates over the years in the UK for the general population this is not the case for people living with mental health conditions. The number of people smoking who also have a mental health condition has remained the same since 1993 (approximately 40%). We hope our results can help motivate policymakers and stakeholders to better support smoking cessation in people with mental health conditions.’

Min Gao, co-author and Researcher in Nuffield Department of Primary Care Health Sciences says: ‘We used three statistical approaches to reduce confounding, so that we provided more robust evidence about the effects of quitting smoking on mental health. Quitting smoking will not worsen and may Improve mental health outcomes.’

The findings are published on World No Tobacco Day, an annual event on 31 May, led by the World Health Organization (WHO). The primary objective of World No Tobacco Day is to raise awareness about the health risks associated with tobacco use and advocate for effective policies to reduce tobacco consumption worldwide.

Smoking is the global leading cause of preventable illnesses and deaths, with nearly half of all smokers dying from a smoking-related disease. Despite expressing a desire to quit, many smokers continue because they perceive smoking as a means of alleviating stress and providing other psychological benefits. This notion that cigarettes have a calming effect is pervasive, and some healthcare professionals may dissuade individuals with mental health disorders from attempting to quit due to concerns about potential worsening of their mental well-being.

Paul Aveyard, co-author, Professor of Behavioral Medicine at the Nuffield Department of Primary Care Health Sciences commented: 'Many people who smoke cannot contemplate stopping smoking. They know it affects their health, but they feel they need cigarettes to cope with stress. This is what people experience every day when they smoke — they feel better afterwards. However what people perceive are the benefits of smoking are the symptoms of withdrawal from cigarettes. While smoking gives a short-term benefit, smoking itself is the cause of the problems. Without smoking, mental health improves on average. Our study joins with others that show that when people stop smoking their mental health improves, whereas those who do not stop smoking have no improvement.’

‘Stopping smoking is not easy,’ added Angela Wu, ‘What we do know though is that you are more likely to successfully stop smoking when you are supported, whether that is pharmacologically or behaviourally. There are many alternatives and options to help you quit, such as counselling, nicotine replacement therapy (for example patches, gum and sprays), and even trying out electronic cigarettes. Electronic cigarettes do not burn tobacco, which is the most harmful element of smoking cigarettes, but will still give you nicotine.’

Reference: Wu AD, Gao M, Aveyard P, Taylor G. Smoking cessation and changes in anxiety and depression in adults with and without psychiatric disorders. JAMA Netw Open. 2023;6(5):e2316111. doi: 10.1001/jamanetworkopen.2023.16111

This article has been republished from the following materials. Note: material may have been edited for length and content. For further information, please contact the cited source.

Thu, 01 Jun 2023 20:37:00 -0500 en text/html https://www.technologynetworks.com/neuroscience/news/quitting-smoking-could-boost-your-mental-health-374154
Android Auto problems and how to fix them
Android Auto in Volkswagen ID.4 Center Console Interaction with Drivers Console

C. Scott Brown / Android Authority

Android Auto is one of the best apps you can get for your car. It’s already available on your Android phone, and if your car supports it, you have a quick way to access Google Maps and music apps, make and receive calls, and reply to messages (with your voice) while you’re out and about. Android Auto makes life much easier on the road, when it works. Unfortunately, one of the most common phone problems users complain about has to do with Android Auto. Here’s a look at some Android Auto problems and how to fix them.

Editor’s note: Some of these steps were assembled using a Google Pixel 7 running Android 13. Some steps might be different depending on your hardware and software.

Does my phone, stereo, or car support Android Auto?

Android Auto in Volkswagen ID.4 Start Android Auto

C. Scott Brown / Android Authority

Let’s start with the basics. Not all phones, cars, or stereos support Android Auto. There are also location restrictions, so you won’t be able to use Android Auto from unsupported countries.

Android Auto requires that your phone runs at least Android 8.0 and has data access, and that’s for a wired connection. Those wanting to use Android Auto wirelessly will need an active data plan, 5GHz Wi-Fi support, and at least Android 11. There are some exceptions. Google and Samsung phones can get away with Android 10. Samsung Galaxy S8, Galaxy S8 Plus, and Note 8 handsets can do with Android 9.0.

You can download the app from the Google Play Store. For any phone with Android 10 or newer, Android Auto is already baked into your phone’s Settings menu.

Let’s move on to cars and stereos. You can check the car and third-party stereo compatibility on Google’s official list. The list of vehicles shows the oldest model that supports Android Auto, and it’s safe to assume that exact cars from these manufacturers support the service. Most exact releases also support Android Auto Wireless. But it’s best to check with the seller first to ensure the vehicle you are interested in supports the service.

Unfortunately, if the car or stereo doesn’t support Android Auto, you won’t be able to use it on just your phone. Google removed the Android Auto for phone screens feature with Android 12. You can still download and install the app on older devices. But with any phone running Android 12, you will have to rely on the Google Assistant Driving mode.

Android Auto availability also depends on your location. The app is available in 46 countries, and not all of them support Google Assistant while using Android Auto. You can find the complete list of supported countries here. Scroll down to the FAQ and look for Is the Android Auto app available in my country?

Similarly, if you live in an unsupported country, there isn’t much you can do other than wait (very patiently).

The classic solution of turning it off and back on!

It’s one of the most common troubleshooting tips: restart it! I’ve found the same applies to Android Auto not working. First, try unplugging your phone and plugging it back in. This often fixes the problem. If that doesn’t work, turn the phone off and back. Lastly, you can try turning the car off and on again, which I’ve had to do a few times.

How to restart your Android phone:

  1. Press the power and volume up buttons simultaneously.
  2. Tap on Restart.

Android Auto is not working on recently purchased phones

Android Auto in Volkswagen ID.4 Connecting With Smartphone

C. Scott Brown / Android Authority

Phone makers make it easy to transfer files, apps, and settings from an old phone to a new device with apps like OnePlus Switch, Samsung Smart Switch, and more. Users say that using these methods to set up their new phones often causes problems with Android Auto. There are a couple of solutions we can recommend.

Uninstall and update the Android Auto app:

  1. Open the Google Play Store.
  2. Search for Android Auto.
  3. Tap on the Android Auto app page.
  4. Hit the Uninstall button and confirm the action by tapping on Uninstall again. Let the process finish.
  5. Tap on Update.
  6. Try using Android Auto again.

Clear the Android Auto app cache and storage:

  1. Open the Settings app.
  2. Go into Apps.
  3. Tap on See all apps.
  4. Find and select Android Auto. In some devices, the app is moved to the system and might appear as com.google.android.projection.gearhead.
  5. Go into Storage & cache.
  6. Tap on Clear storage and Clear cache.

Check Android Auto app settings

Settings logo on Android phone stock photo 1

Edgar Cervantes / Android Authority

The Android Auto app has various settings that might be deactivated, which can stop the app from working when connected to a car.

Check the Android Auto settings are correct:

  1. Open the Settings app.
  2. Go into Connected devices.
  3. Tap on Connection preferences.
  4. Hit Android Auto.
  5. Select Start Android automatically and pick Always.
  6. Toggle on Start Android Auto while locked.
  7. Enable Wireless Android Auto if your car and phone support it. If it doesn’t, or you want to use a wired connection, disable this setting instead.
  8. Tap on Previously connected cars at the top of the settings and ensure your vehicle isn’t accidentally on the Rejected cars list. Enable Add new cars to Android Auto. However, in some cases, if you plan to use the same car every time, users say that disabling this setting helps fix connection problems.

Android Auto problems with the USB cable

Android Auto in Volkswagen ID.4 Google Maps Navigation

C. Scott Brown / Android Authority

A lot of Android Auto connection problems occur because of a faulty cable. If you see frequent disconnections or Android Auto isn’t loading at all, the cable might be the problem.

Potential solutions:

  • Google recommends using a cable under 1 meter (3 feet) long. It’s also best to use the cable that comes with the phone. If you use a third-party cable, make sure it is USB-IF certified.
  • Check the cable to see if it works with another phone or car. If not, it’s likely a faulty cable that you will need to replace.
  • A March 2022 Android Auto update (version 7.5.121104) added a USB startup diagnostics tool to tell you if you are using a suitable cable. After connecting the phone to your car, open the Android Auto Settings, tap on Connection help, and go to USB startup diagnostic.
  • It could be a settings issue. The phone should automatically recognize when you are trying to use Android Auto. If it only charges the phone when you plug it into your car, open the notification drawer. Tap on USB settings and select Data transfer/Android Auto.

Problems with Android Auto Wireless

Android Auto in Volkswagen ID.4 App Selections

C. Scott Brown / Android Authority

You don’t have to worry about carrying a cable around if your car supports Android Auto Wireless (check with your car manufacturer). However, plenty of users face problems with connecting to the wireless feature.

Make sure Bluetooth is enabled:

  1. Open the Settings app.
  2. Go into Connected devices.
  3. Select Connection preferences.
  4. Hit Bluetooth.
  5. Toggle Use Bluetooth on.

If you are facing problems with Android Auto Wireless, users say that setting up a wired connection first seems to do the trick. Plug the phone in with a cable and set up Android Auto. Once the connection is established, Android Auto should work the next time wirelessly. Turn off your car, unplug the phone, and try to use Android Auto Wireless.

Blurry, pixelated, or blank screen

Some users say that while Android Auto seems to connect and the Google Assistant works as expected, they see a blurry, pixelated, or blank screen.

How to increase the Android Auto video resolution:

  1. Open the Android Auto app.
  2. Scroll to the bottom and tap on the Version section to display the Version and permission info.
  3. Tap on this section multiple times continuously.
  4. You’ll be asked if you want to allow development settings. Hit OK.
  5. Tap on the three-dot menu icon in the top-right corner.
  6. Open Developer settings.
  7. Go to Video resolution.
  8. Set the resolution to the highest option available.

Fixed/known Android Auto problems

Android Auto in Volkswagen ID.4 Google Assistant Command

C. Scott Brown / Android Authority

With a mix and match of phones, cars, and third-party stereos, it’s difficult to pinpoint what is causing Android Auto problems and offer solutions beyond general troubleshooting. Google continuously updates Android Auto and fixes issues as they come up. You should also report any problems you face to let Google know.

Recent fixed problems (May 2023):

  • Split screen not working.
  • Weather info not available on Coolwalk.
  • “Searching for GPS” error when using Google Maps.
  • The screen turns dark after saying, “Hey, Google.”
  • Amazon Music playing the wrong songs.
  • Inability to scroll or navigate within Android Auto.
  • Android Auto using the phone speaker instead of the car’s, for calls.
  • When using Pixel 7 devices, you might get an “App isn’t compatible” error message.

Known issues:

  • Can’t send messages through Telegram.
  • Samsung Galaxy S23 Ultra users see a “USB device not supported” error message.
  • Android Auto is having problems with the drop pin within Google Maps.
  • WhatsApp users are having trouble seeing a contact’s number.
  • Google Assistant keeps saying it needs you to “allow personal results in this car.”
  • Assistant not practicing incoming messages.
  • Random disconnections on Pixel 7 devices.
  • Android Auto not connecting with MIUI 13 phones.
  • Volkswagen users can’t connect to the Samsung Galaxy S22 Ultra.
  • Android Auto not connecting with the Xiaomi 11t Pro.

How to send feedback/bug reports:

Open the Android Auto settings page and tap on the three vertical dots at the top right corner. Go to Help and feedback > Send feedback. You can also post your problems on the Android Auto community page.


Android Auto is technically an app on your Android phone. It uses your car’s screen to display a driving-focused interface and features you can use while on the road. You can learn more about what Android Auto is in our dedicated post.

Yes. The feature is called Android Auto Wireless. You will need at least Android 11, an active data plan, 5GHz Wi-Fi support, and a supported car/stereo to use Android Auto Wireless.

The answer to this question depends on what you define as better. Android Auto is definitely safer, as it is designed to cut down distractions and reduce physical interaction with the screen. This will help you keep your eyes on the road. As a result, though, the experience is significantly cut down. There are a lot of apps and features you can’t access on Android Auto.

There is now a long list of Android Auto-supported car makers, models, and stereos. You can check out Google’s full list of compatible cars and stereos to find out.

Mon, 23 May 2022 19:07:00 -0500 en text/html https://www.androidauthority.com/android-auto-problems-fixes-3168245/
MMS Problems on an Android

Maya Walker began writing professionally in 2008. Her articles have appeared on a variety of websites, covering technology, personal finance, music and health topics. Walker is pursuing a Bachelor of Arts in English at Stephen F. Austin University in Texas.

Wed, 26 Jan 2022 20:27:00 -0600 en-US text/html https://smallbusiness.chron.com/mms-problems-android-35796.html
Skin Problems in Diabetes

Show Sources


Photo Credit: Richard Usatine, MD

National Library of Medicine

National Diabetes Information Clearinghouse: “Prevent diabetes problems: Keep your feet and skin healthy.“ 

American Diabetes Association: “Skin Complications.”

Sat, 20 May 2023 12:00:00 -0500 en text/html https://www.webmd.com/diabetes/skin-problems

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