Restore TeamViewer Not ready. Please check your connection problem in Windows

 TeamViewer, the company's flagship product, is an all-in-one remote support, remote access, and online meeting solution that lets you support customers remotely, collaborate with colleagues, and stay connected using your own devices . or support friends and family.

The software is active on more than 400 million devices, of which at least 30 million are connected to TeamViewer. The company's product portfolio is rounded off by solutions for computer monitoring, data backup, anti-malware and web conferencing.

TeamViewer's solution portfolio spans the enterprise lifecycle 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?

TeamViewer may be a German success story, but that doesn't mean it can't sometimes go wrong. Many users have encountered the "Not Ready" error. Please check your connection. If you visit the TeamViewer community page, you know how dire the situation is. After fixing the problem, it turns out that this is one of the reasons why the error keeps appearing:

Poor internet connection - When you encounter this error, the first thing you need to do is check your internet connection. Older internet devices like routers and receivers can cause this error. Check the WiFi level on the device you are trying to connect to TeamViewer with.

Preventive firewall or antivirus program - Your antivirus program may include TeamViewer in the list of prohibited platforms. You can find out by opening your antivirus program. Once it's running, look for the "Firewall Protection" option. If your antivirus or firewall doesn't include TeamViewer in the list of allowed applications, you can add it as an exception.

User Interface Change - The current TeamViewer user interface is slightly different from the previous one. Some members of the TeamViewer community have reported that switching to the older UI fixed the bug.

Outdated TeamViewer Software -Like other platforms, TeamViewer receives regular updates as developers are constantly working to improve it.

How to fix "Not ready. Please check your connection" error in TeamViewer on Windows?

Remove TeamViewer from the hosts file

It is very likely that the TeamViewer entry in your computer's hosts file is corrupt. Completely incorrect addresses and dates can be displayed and we recommend deleting the entry. If you open the file again, the entry will be recreated and hopefully the problem won't come back!

1. After opening file explorer go to location C->Windows->System32->Drivers->etc by going there. First, click "This PC" or "My Computer" on the left panel 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 show hidden files and folders. Click the "View" tab in the top menu of File Explorer and check the "Hidden items" box in the "Show/Hide" section.
   File Explorer shows hidden files and remembers this setting until you change it again.
3. Locate the hosts file in the Etc folder, right click on it and choose "Open with Notepad". Use the Ctrl+F keyboard shortcut and type "Teamviewer" in the "Search for" box before clicking "Find Next".
4. Locate the TeamViewer section in the file. It should start with "#Teamviewer".
   Make sure you select everything that goes with it, right-click the selection and choose Delete from the context menu.
5. Click File->Save to save your changes or use the Ctrl+S shortcut. Quit Notepad and restart your computer.
   Check if there is a problem with the TeamViewer error message "Not ready. Check your connection!" Error message.

Change your DNS address.

Users have reported that they were able to solve the problem simply by changing the DNS address provided by their 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 have simply used Google DNS to troubleshoot the problem. Follow these steps to change your computer's DNS address!

1. Use the Windows+R keyboard shortcut, which should open the Run utility. Type "ncpa.cpl" in the text box and click OK to open the Internet Connection Settings Control Panel entry.
2. You can do the same by opening the Control Panel manually. At the top right of the window, navigate to the View by Category option and click Network & Internet at the top. Click Network and Sharing Center to open it before you find it and click Change adapter settings in the left menu.
3. When you open the Internet connection screen in any of the above ways, double-click on the active network adapter (the one you are using to connect to the Internet) and click Properties at the bottom of the screen if you have administrative privileges for the current user account.
4. Find Internet Protocol Version 4 (TCP/IPv4) in the list. Click on it to select it, then click on 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 any other option.
6. In both cases, set the preferred DNS server to 8.8.8.8 and the alternate DNS server to 8.8.4.4.
7. Leave the "Check settings on logoff" option checked and click OK to apply the changes immediately. Check if the TeamViewer message is ready. The error message "Checking connection" still appears on your computer!

Winsock reset.

The "netsh winsock reset" is a useful command that you can use on 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 keyboard shortcut Ctrl+Shift+Enter to run Command Prompt with administrator privileges.
3. Type the following commands into the window and press Enter after each command. Wait for the "Winsock reset completed successfully" message or something similar to appear to let you know the method worked and you didn't make any typos. Check if the problem persists.

Reset Winsock networks Reset
networks within the IP

Don't use the new user interface

The interface should by no means be related to TeamViewer's internet connection, but oddly enough, many users reported that they were able to solve the problem simply by going back to the program's old design. This is possible in the TeamViewer settings. So, follow these steps and try to solve the connection problem.

1. Open TeamViewer by double-clicking the icon on your desktop or look for opening the start menu and left-clicking the top result.
2. From the home 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 enable the "Use new user interface" option in the General advanced settings section. Before confirming the changes made, uncheck the box next to it.
4. Open TeamViewer again and see if you keep getting the "Not ready. Check your connection" error message on your computer!

Add an exception for the Teamviewer_Service file.

Sometimes antivirus 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 need to add it to the exceptions/exclusions list!

Permission in Windows Defender Firewall

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

1. Open the Control Panel by launching the utility from the Start button or by cl . searchClick the Search or 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 Windows Defender Firewall and select Allow an application or feature through Windows Firewall from 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 provide administrator privileges. Try to find the executable file there. If it's not there, click the Allow other applications button below.
4. Go to the TeamViewer installation location (C:\Program Files(x86)TeamViewer by default) and select the Teamviewer_Service.exe file.
5. Once 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. Before checking the TeamViewer Not Ready error message, click OK and restart your computer. Check connection" is still displayed on your computer.

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. Hence, this method is useful and should not be overlooked when troubleshooting.

1. Use the Windows+R key combination, which should immediately open the "Run" dialog box, where you need 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 performed by manually opening the Control Panel. Switch to category view by going to the top right pane and clicking Network & Internet at the top. Click the Network and Sharing Center button to open it. Try to find the "Change adapter settings" button in the left menu and click on it.
3. When the Internet Connection window opens, double-click 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.

Restart the TeamViewer service

If you stop the TeamViewer service, the whole process will be restarted.
Many users reported that TeamViewer only took a few minutes to restart. Before you begin, make sure you have completely shut down TeamViewer.

1. Open the Run utility using the Windows+R key combination on your keyboard (press these keys at the same time). In the new field, type "services.msc" without the quotes 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 using the search button in the start menu.
3. Once the Control Panel window is open, change the View 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. Locate the TeamViewer service in the list, right-click on it and select Properties from the appearing pop-up menu.
5. If the service is running (you can check this right next to the service status message), you should stop it for now by clicking the "Stop" button in the middle of the window. If it stops, leave it until we continue.
6. Before proceeding to the next step, ensure that the Startup Type menu option in the Service Properties window is set to Automatic. Confirm any dialog boxes that may appear when changing the startup type. Before exiting, click the Start button in the middle of the window.

Reinstall TeamViewer

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

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 in the lower-left corner of the Start menu to open the Settings app if you're using Windows 10.
2. From the Control Panel, select View as a category in the upper right corner of the Control Panel window and under Programs click Remove a program.
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. Locate TeamViewer in Control Panel or Settings and click Uninstall/Restore. Follow the on-screen instructions to completely uninstall the program.
5. Download the latest version of TeamViewer. Download the installer file, run it from the Downloads folder, follow the onscreen instructions and check if the problem persists after reinstalling TeamViewer!

frequently asked Questions

Why doesn't TeamViewer connect?

Antivirus or firewall issues- If TeamViewer's access to the internet is denied by your firewall or antivirus program, try making an exception for the executable. Problems with DNS and Winsock DNS addresses can be changed and Winsock reset.

How to fix proxy error in TeamViewer?

1. Change your DNS. Go to your control panel.
2. Check your firewall. TeamViewer uses port number 5938 to connect to its servers and redirect them to other PCs.
3. Restart the application on your PC.
4. Make sure you are not using a proxy server.

How do I connect TeamViewer to the internet?

Click the Connect to partner button and enter the TeamViewer password on the remote computer when prompted. You are now connected to the remote computer directly through your local network without using the internet. Note: In order to operate the TeamViewer LAN connection, please make sure that both computers are in the same network.

Why is only one LAN connection possible with TeamViewer?

There may be a problem on the computer that is experiencing the DNS problem. You have an internet connection, but the address of the TeamViewer servers may not be resolved.