How to fix “Not Ready. Please check your connection.” TeamViewer

Are you getting the ‘not ready, please check your connection error message’ on TeamViewer? This error message is a persistent error message that you’ll see on the app when you have a bad internet connection or a blocked connection to TeamViewers servers.

In today’s TechSplat article, we’re going to take a look at what the not-ready error is, and how you can fix it quickly. 

What is the Cause of ‘Not Ready. Please Check your Connection’?

For most people who experience the not ready – please check your connection error, it’s usually down to a few issues. This is commonly down to a bad internet connection or related to it in some way. This includes;

  • Bad Internet Connection
  • Preventive Firewall or Antivirus Program
  • Outdated TeamViewer Software

Although these are the majority of the causes for the error, you may still experience the error from other causes. Rest assured, that we’re going to figure out the best way to fix it. Let’s jump straight into it.

How to fix ‘Not Ready. Please Check your Connection’ on TeamViewer

There are several ways to fix the Not Ready – Please check your connection’ error message in TeamViewer. Try these fixes one by one, and let us know in the comments if you had any luck with any of these. 

Check your Internet Connection / Restart your Router

One of the most common fixes for this TeamViewer is to simply check your internet connection or restart your router. Some of the ways you can check this is to make sure your internet connection is strong. To check this;

  1. Go to Google Speed Test (Official Google Internet Speed Test)
  2. Press the ‘Go’ button, and let the test run.
  3. With the results, aim to have about 10 Mbps Download, and 5 Mbps Upload.

If your results are not at these speeds or higher, try another internet connection or contact your internet service provider (ISP) to see if there is a fault in your connection. 

Google Fiber Speed Test to check Network Connection
Google Fiber Speed Test to check Network Connection

Alternatively, you might find restarting your router easier. Your router is the small box that provides internet, and typically pulling the power from it will restart it. To restart your router, follow the below steps.

  1. When in front of your router, pull the power cable out and set it aside.
  2. Leave unplugged for 15 seconds.
  3. Plug the cable back in, and wait 3-5 minutes for the router to start back up again.
  4. Once back online, check your internet on your device and try TeamViewer again.

Once you’ve completed the above steps, try TeamViewer again and see if there are any changes to your issue. If you’re still getting the ‘please check your connection’ error message – continue with the below steps.

Reinstall TeamViewer

In some cases, people who experience the error message may have an outdated, corrupt, or otherwise faulty version of TeamViewer installed. The best way to fix any of these issues is to simply re-install the application. To reinstall the latest version of TeamViewer, follow the below steps.

  1. To uninstall TeamViewer, go to your control panel. To do this, in the bottom search bar in Windows, and type in Control Panel
  2. In Control Panel, hit ‘Uninstall Programs’, and find ‘TeamViewer’ in the list.
  3. Press ‘Uninstall’ whilst highlighting TeamViewer, and allow the uninstaller to run.
  4. Once confirmed to be uninstalled (a browser page should open) – then restart your device.
  5. Head over to TeamViewer’s Official Download Page and download the latest version.
  6. Open the TeamViewer application, and run through the steps provided on the screen.
  7. Once installed, restart your device and open TeamViewer to try connecting again.
Download TeamViewer for Windows to fix Not Ready Please Check your Connection Error
Download the Latest Version TeamViewer for Windows

This reinstallation process is quite simple to do, and the on-screen instructions provide a good level of help when installing the application, however, in some cases you may need to install differently depending on your version of TeamViewer. If you’re using the business version – speak to your IT administrator.

Change/Edit your DNS Address

Sometimes, your ISP (internet service provider) will prevent you from connecting to TeamViewer as the program has been used before for scams and fraud. To mitigate your ISP blocking this – you can simply change your DNS address. Whilst this might cause issues with other applications, it can be a good test to ensure it is or isn’t your ISP. To change your DNS address, follow the below steps.

  1. Press ‘Windows Key + R’ and type in ‘Control Panel’.
  2. When the Control Panel is open, click ‘Network and Internet’, then ‘Network and Sharing Centre’. 
  3. Within here, click your adaptor (or the default will open automatically) and click ‘Change Adaptor Settings’. 
  4. Right-Click into your Adaptor, and press ‘Properties’. This will then open your ethernet or wifi settings – and will show a list. In this list, find ‘Internet Protocol Version 4” and select it – then press ‘Properties’. 
  5. Another window will open, and here you will see two checkboxes. On the bottom checkbox, named ‘Obtain DNS Server address automatically’, click ‘Use the following DNS Server Addresses’ and enter Google’s DNS ( in the first box, and in the second).
  6. Then, tick ‘Validate settings upon exit’, and press ‘Ok’. 
Change DNS for TeamViewer Connection Errors
Change DNS Settings to Google’s to fix TeamViewer Connection Issues

After this, you may need to restart your device but once done, try TeamVewier again and see if the not ready, please check your connection error message on TeamViewer.

Reset the Windows Network Service (Winsock)

Windows is another known issue to TeamViewer issues, especially connection issues. Winsock, otherwise known as the Windows Network Service is Windows’ way of helping you connect to other devices and the internet. Sometimes, this needs to be reset to ensure connections can be established.

To reset your winsock service, simply follow the below steps.

  1. Press ‘Windows Key + R’ and type in ‘Cmd’. (You may need to open this as an administrator if you’re not already one). 
  2. When the black box screen opens, type in ‘netsh winsock reset’. 
  3. This will then reset your Winsock service. This may take 2-5 minutes to finish.
How to reset Winsock on Windows
Reset Winsock on Windows to fix TeamViewer Connection Issues

Once winsock has been reset, give your device a restart and try TeamViewer again to see if you get any error messages relating to connection issues. 

Do not use the New User Interface

TeamViewer recently released the New User Interface to give TeamViewer a new look, and feel for a better user experience. However, in doing so – they missed a few issues with the product which limited bandwidth, as well as functionality. This limitation prevents connections on TeamViewer which can be prevented.

The simple way to fix this is to reinstall the application. If you’re still struggling after reinstallation – then move on to the next steps. However, if you haven’t re-installed TeamViewer yet we would recommend doing so. 

Allow the App Through Windows Defender Firewall

Another common issue with TeamViewer and Windows is the interference between Windows Defender Firewall, and the connections from TeamViewer. Thankfully, Microsoft is being very helpful with fixing issues with TeamViewer, however, you may still need to allow the application through the firewall.

To allow TeamViewer through Windows Defender Firewall, follow the below instructions.

  1. In Windows, using the search bar – search ‘Allow an app through Windows Firewall’ and open the first result on this list.
  2. Once open, press ‘Change Settings’ and wait for it to open. You may need administrator rights to do so.
  3. In this screen, press ‘Allow Another App’ and find TeamViewer in this list – then tick it for it to be an approved application. You can also block or remove it here.
Allow TeamViewer through Windows Defender Firewall
Allow TeamViewer through Windows Defender Firewall

Once the box is ticked, it should take effect straight away, so restart TeamViewer (or your device) and try TeamViewer again to see if this resolves your issue with the connections. 

Restart the TeamViewer Service

One last step you can try if you’re still having issues is to restart the TeamViewer service. Restarting the TeamViewer service will allow for any required services to be started and should allow connections to flow. To restart your TeamViewer service follow the below steps.

  1. Press ‘Windows Key + R’ and type in ‘services.msc’. 
  2. Once open, click on any entry in the list, and press ‘T’ which will jump to the T-section of the list. Here, find any ‘TeamViewer’ related services.
  3. Right-click on them, and hit ‘Start’, ‘Stop’, or ‘Restart’. 

Once all the services are restarted, restart your device and try to connect, or be connected to on TeamViewer to hopefully fix your issue. 

Final Notes

Overall, TeamViewer is notorious for bugs but the ‘Not ready. Please check your connection’ error is one of the worst to get when you’re just trying to connect or be connected to. We hope that this guide has helped you understand what is the cause of this, and how you can fix it quickly.

As always, if you have any issues with anything else or have had a good experience here – let us know in the comments and let us know how we did. Thanks for taking the time to read, and have a great day!

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