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TeamViewer has proven to be a good software from time to time. But, many users use it from version 5 to the latest version v12 under Linux, OSX and of course under Windows.
Users under Windows 7 64bit, TeamViewer v12 refused to connect with its backend; the error:
Not ready. Please check your connection.
Remove TeamViewer from the Hosts file
It is very likely that the TeamViewer entry in the hosts file on your computer has been corrupted. It may display completely incorrect addresses and data, and we recommend that you delete the entry. Once you have reopened it, the entrance will be recreated and we hope that the problem will not happen again!
- Navigate to the location C >> Windows >> System32 >> Driver >> Etc by accessing it after opening the file explorer. First click on This PC or My Computer on the left side of the page to find and open your local C hard drive.
- If you cannot see the Windows folder, you may need to enable the option to view hidden files and folders. Click the View tab in the main menu of the File Explorer and select the Show/Hide
- Hidden Items in File Explorer check box to view the hidden files and save this setting until you change it again.
- Locate the Hosts file in the Etc folder, right-click it and choose Open with Notepad. Use Ctrl + F and make sure you type “teamviewer” in the Search What field before clicking on Next Search.
- In the file, locate the TeamViewer section. It should start with “#TeamViewer” and make sure that you select everything that goes with it, right-click on the selection and select the Delete button from the context menu.
- Click File >> Save to save the changes or use the Ctrl + S key combination. Exit Notepad and restart your computer. Check if the problem comes from TeamViewer “Not Ready. Error message “Check Connection” !
Check your proxy settings
If you do not use a proxy or firewall, but still have a connection problem, you may need to change your Internet settings. After checking that no proxy is working, go to Control Panel > Network and Internet > Internet Options > Connections > LAN Settings and disable all options.
Change your DNS address
Users said they could solve the problem by simply changing the DNS provided by your ISP (Internet Service Provider) and starting to use another one. It may be a DNS from a computer on which the problem does not exist, but many users have simply used Google’s DNS to solve the problem.
Repair TeamViewer on Windows 10
If the problem persists and your Windows 10 system is affected, we have a number of additional solutions that you can try. For more information, see this troubleshooting guide. Remember to run a full antivirus scan of the system, as malware can also prevent you from opening certain applications and programs. Note that your antivirus program can sometimes block Teamviewer.
Therefore, follow the suggestions above to solve your Teamviewer problems on Windows 8.1, 10 or Windows 7. Even if you have any questions about this article, please use the comments section below to let us know.
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CCNA, Web Developer, PC Troubleshooter
I am a computer enthusiast and a practicing IT Professional. I have years of experience behind me in computer programming, hardware troubleshooting and repair. I specialise in Web Development and Database Design. I also have a CCNA certification for Network Design and Troubleshooting.