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Fix TeamViewer ‘Not ready. Please check your connection’ problem in Windows

Fix TeamViewer ‘Not ready. Please check your connection’ problem in Windows


Are you getting the “Not ready Please check your connection” issue on your TeamViewer install on Windows 7, 8.1, or Windows 10? Don’t worry, we feel your pain and we will help you get your TeamViewer working again in no time!


The software is active on more than 400 million devices, of which at least 30 million are connected to TeamViewer at any given time. The company’s product portfolio is rounded out by solutions for computer monitoring, data backup, anti-malware, and web conferencing.
The TeamViewer solution portfolio spans the lifecycle of the company and addresses specific needs, such as screen sharing, remote desktop, remote access, instant professional chat, web and video conferencing, backups, anti-malware, online whiteboards, and more.

What causes the TeamViewer error “Not ready. Please check your connection” in Windows?

Not ready Please check your connection 
 How to fix


Many people around the world have encountered the “Not Ready” error. Please check your connection issue when using Teamviewer both for the first time and after several uses. If you visit the TeamViewer community page, you will know how bad the situation is. After troubleshooting the issue, it turns out that this is one of the reasons why the error keeps occurring:

Bad Internet Connection
Preventive Firewall or Antivirus Program
Interface Change
Outdated TeamViewer Software

How do I fix the “Not ready. Please check your connection” error in TeamViewer on Windows?

How to fix Not ready Please check your connection

Remove TeamViewer from the Host File

It is very likely that the TeamViewer entry in your computer’s hosts file is corrupted. It may display completely wrong addresses and data, and we recommend deleting the entry. Once you open the file again, the entry will be recreated and hopefully, the problem will not happen again!

  1. After opening the file explorer, go to the C -> Windows -> System32 -> Drivers -> Etc location by going there. First, click “This PC” or “My Computer” in the left pane to locate and open your local C drive.
  2. If you don’t see the Windows folder, you may need to enable the option to view hidden files and folders. Click the “View” tab on the top menu of File Explorer and check the “Hidden Items” box in the “Show/Hide” area.
    File Explorer displays hidden files and saves this setting until you change it again.
  3. Find the Hosts file in the “Etc” folder, right-click on it and select “Open with Notepad”. Use the Ctrl + F shortcut and be sure to type “Teamviewer” in the “Find What” field before clicking “Find Next”.
  4. Find the TeamViewer section in the file. It should start with “#Teamviewer”.
    Make sure that you select everything that belongs to it, right-click on the selection and choose Delete from the context menu.
  5. Click File -> Save to save your changes, or use the Ctrl + S shortcut. Exit Notepad and restart your computer.
    Check if there is a problem with the TeamViewer error message “Not ready. Check your connection!” error message.

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Change your DNS Address.

Users have reported that they were able to solve the problem simply by changing the DNS address provided by your Internet Service Provider (ISP) and using a different address. This may be the DNS of a computer that is unaware of the problem, but many users simply used Google DNS to fix the problem. Follow these steps to change your computer’s DNS address!

  1. Use the Windows + R key combination, which should open the Run utility, where you need to type “ncpa.cpl” in the text box and click OK to open the Internet Connection Settings entry in Control Panel.
  2. You can do the same by opening the Control Panel manually. Navigate to the Show by Category option at the top right of the window and click on Network and Internet at the top. Click on Network and Sharing Center to open it before you find it, and click on Change Adapter Settings in the left menu.
  3. When you open the Internet Connection screen in one of the above ways, double-click the active network adapter (the one you use to connect to the Internet) and click Properties at the bottom of the screen if you have administrator rights for the current user account.
  4. From the list, find the Internet Protocol version 4 (TCP/IPv4) entry. Click it to select it, then click the “Properties” button below it.
  5. Stay on the General tab and change the radio button in the Properties window to “Use the following DNS server addresses” if it was set to another option.
  6. In both cases, set the preferred DNS server to 8.8.8.8 and the alternative DNS server to 8.8.4.4.
  7. Leave the “Check settings on logout” option checked and click OK to apply the changes immediately. Check if the TeamViewer message is ready. The “Check connection” error message still appears on your computer!

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Reset the Winsock Network Service

The “netsh Winsock reset” is a useful command that you can use at the order line to reset the Winsock directory to its default or clean state. You can try this method if you cannot log into TeamViewer.

  1. You can search for “Command Prompt” by typing it directly into the Start menu or by clicking the search button next to it. Right-click on the first entry that appears in the search and then select “Run as administrator” from the context menu.
  2. Alternatively, you can also use the Windows logo + R key combination to bring up the “Run” dialog box. In the dialog box that appears, type “cmd” and use the key combination Ctrl + Shift + Enter to run the command prompt with administrator privileges.
  3. Enter the following commands in the window and be sure to press Enter after entering each command. Wait for the message “Winsock reset completed successfully” or something similar to let you know that the method worked and that you made no typing errors. Check to see if the problem is still there.

reset winsock nets
resetting nets inside ip

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Do not use the New User Interface

The user interface should by no means be related to TeamViewer’s Internet connection, but oddly enough, many users have reported that they were able to solve the problem simply by reverting to the old design of the program. This can be done in TeamViewer settings. So follow these steps and try to solve the connection problem.

  1. Open TeamViewer by double-clicking on its icon on your desktop or search after opening the Start menu and left-clicking on the highest result.
  2. On the Start screen, click the Tools button on the menu bar and select Options from the list that appears.
  3. In the TeamViewer settings, go to the Advanced tab via the left navigation menu and activate the “Use new user interface” option in the General advanced settings section. Be sure to uncheck the box next to it before confirming the changes you have made.
  4. Open TeamViewer again and check whether the error message “Not ready. Check your connection” always appears on your computer!

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Add an Exception for the Teamviewer_Service File

Sometimes, anti-virus tools do not recognize the program’s efforts to connect to the Internet as harmless, and TeamViewer functions are often blocked by them. To prove to the antivirus that the program is harmless, you must add it to the list of exceptions/exceptions!

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After you’ve completed this, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Give Permission in the Windows Defender Firewall

For TeamViewer to work properly, the application must have uninterrupted access to the internet and its servers. Windows Defender Firewall is often at fault in such cases, and we recommend making an exception for Teamviewer_Service.exe inside the Windows Defender Firewall!

  1. Open the Control Panel by searching for the utility using the Start button or by clicking the Search button or the Cortana button on the left side of the taskbar (bottom left of the screen).
  2. Once the Control Panel opens, change the display to Large or Small icons and scroll down to open the Windows Defender Firewall option.
  3. Click on Windows Defender Firewall and select the Allow an application or feature through Windows Firewall option in the list of options on the left. A list of installed applications should open. Click the Change Settings button at the top of the screen and specify administrator rights. Try to find the executable file there. If it is not there, click the Allow other applications button at the bottom.
  4. Go to the TeamViewer installation location (C: Program Files (x86)TeamViewer by default) and select the Teamviewer_Service.exe file.
  5. Once they are found, click the Network Types button at the top and make sure you check the boxes next to Private and Public Entities before clicking OK -> Add.
  6. Click OK and restart your computer before checking the TeamViewer “Not Ready” error message. Check your connection” is still displayed on your computer.

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Disable IPv6

Disabling the Internet Protocol version 6 connection on your computer has solved the problem for many users and is an easy way to solve it. Therefore, this method is useful and should not be overlooked when troubleshooting.

  1. Use the key combination Windows + R, which should immediately open the “Run” dialog box, where you have to type “ncpa.cpl” in the line and click OK to open the “Internet Connection Settings” item in the Control Panel.
  2. The same process can be done by opening the Control Panel manually. Go to Category view by going to the top-right pane, and click on Network and Internet at the top. Click the Network and Sharing Center button to open it. Try to find the “Change Adapter Settings” button on the left menu and click on it.
  3. When the Internet Connection window opens, double-click on the active network adapter.
  4. Then click Properties and look for the Internet Protocol version 6 entry in the list. Uncheck the box next to this entry and click OK. Restart the computer to confirm the changes and check if the problem persists.

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Restart the TeamViewer Service

When you stop the TeamViewer service, the entire process restarts.
Many users have reported that it only took a few minutes to restart TeamViewer. Before you start, make sure that you have completely shut down TeamViewer.

  1. Open the Run utility using the Windows + R key combination on your keyboard (press these keys simultaneously). In the new field, enter “services.msc” without quotation marks and press OK to open the Services tool.
  2. You can also open the Control Panel by searching for it in the Start menu. You can also search for it by using the search button on the Start menu.
  3. Once the Control Panel window is open, change the Show By option at the top right of the window to Large Icons and scroll down until you find Administrative Tools. Click on it and find the Services shortcut at the bottom. Click on it to open it.
  4. Find the TeamViewer service in the list, right-click on it and select Properties from the pop-up menu that appears.
  5. If the service is running (you can check it right next to the service status message), you should stop it for now by clicking the “Stop” button in the middle of the window. Once it stops, leave it until we continue.
  6. Before proceeding to the next step, make sure that the “Startup Type” menu option in the Service Properties window is set to “Automatic”. Confirm any dialog boxes that may appear when you change the startup type. Click the Start button in the middle of the window before exiting.

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Reinstalling TeamViewer to fix “Not ready. Please check your connection”

If all of the above methods don’t work, reinstalling TeamViewer is the last method that can help solve the problem on your computer. It should be quick and painless if you follow all the steps correctly! You will also install the latest version, which contains a patch for the specific problem you are experiencing!

  1. Click on the Start menu and open the Control Panel by simply tapping it when the Start menu window opens.
    You can also click the gear icon at the bottom left of the Start menu to open the Settings app if you’re using Windows 10.
  2. On the Control Panel, select View as Category in the upper right corner of the Control Panel window and click Remove Program under Programs.
  3. If you’re using the Settings app, clicking Applications should immediately open a list of all the programs installed on your computer, so wait a while for it to load.
  4. Find TeamViewer in the Control Panel or under Settings and click Uninstall/Restore. Follow the instructions that appear to completely uninstall the program.
  5. Download the latest version of TeamViewer. Download the installation file, run it from the Downloads folder, follow the instructions on the screen, and check if the problem persists after reinstalling TeamViewer!

After you’ve completed the steps, try your TeamViewer connection again, to see if the error “Not ready Please check your connection” becomes a problem again. If it does, continue troubleshooting!

Conclusion to fix “Not ready. Please check your Connection”

In conclusion, this issue can be quite fustraiting and may not be fast to fix. Hopefully one of these fixes has helped you with the Not ready. Please check your connection issue you’ve been facing on Windows 10.

Let us know in the comments, or be sure to check our other TeamViewer content to help you with any other problems! If you are still having problems, TeamViewer’s support is always on hand to help!

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