TeamViewer “Not Ready Check Your Connection” error, how to resolve it

TeamViewer is the most popular program for remote access. With this software, users can exchange files and messages, hold conferences or join online meetings, control remote devices. Despite the fact that TeamViewer is developed by the best specialists, the program sometimes has errors like “Not ready. Check your connection.”

Possible reasons

An error reporting that TeamViewer is not ready to work due to a lack of connection may appear due to several reasons:

  • Connection blocked by antivirus software.
  • Blocking the connection with the built-in firewall.
  • Server outage.
  • Error within the program.

Let’s consider each cause and methods for solving the problem.

TeamViewer "Not Ready Check Your Connection” error, how to resolve it

Connection blocked by antivirus

Very often, antivirus software can block access to completely harmless sites and not allow you to install some programs.

But few people know that antivirus programs are also capable of blocking the Internet connection for applications.

To solve the problem you need:

  • Go to “Settings” of your antivirus.
  • Find the “Exceptions” item.
  • Add TeamViewer to the list of allowed applications.
  • Now the antivirus will not block software attempts to connect to the Internet.

Firewall settings

Usually, the firewall does not prevent you from connecting to other computers, however, sometimes it can still block access. It’s not that hard to check.

  • Go to Start – Settings,
  • Updates & Security – Windows security – Open Windows security,
  • Firewall & network protection – Allow an app through firewall.

Also, please open Port 5938 for outgoing connections.

Server outage

You can check the current status of all TeamViewer Services here:

TeamViewer "Not Ready Check Your Connection” error, how to resolve it

Incorrect program operation

First, try to exit the program:

  • On Windows: Open TeamViewer’s menu, and select Exit TeamViewer.
  • On Mac: Go to TeamViewer, and select Quit TeamViewer.

Then reboot your computer.

If that doesn’t help, reinstall the program. First, uninstall it:

  • Go to Start – Settings,
  • Apps – Apps & features,
  • Select TeamViewer from the list, and click the Uninstall button.

Then download the installation file from our site, and install the program anew.

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Mike Lombardi/ author of the article

QA engineer, head of automated software testing department. Knowledge of Java, C/C++, JSP, HTML, XML, JavaScript, SQL and Oracle PL/SQL. Journalist and columnist in the IT field. Website creator and administrator.

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