How to fix the "TeamViewer - Not Ready" error. Check connection »

How to fix the "TeamViewer - Not Ready" error. Check connection »


TeamViewer is one of the best programs for remote control of computers. You can use it to exchange files between the computer you control and the one you don't. But like any other program, it is not perfect and errors sometimes occur because of both the users and the developers.

How to fix TeamViewer is not ready and not connected error

Let's break down what to do in case you get the error “TeamViewer - Not Ready. Check connection »and why the error occurs. There are several reasons for this.

Reason 1: Antivirus is blocking the connection

There is a possibility that the connection will be blocked by an antivirus program. Most modern antivirus solutions not only monitor the files on your computer, but also closely monitor all Internet connections.

The problem is solved in a simple way: you have to add the program to the exceptions of your antivirus. After that, it will no longer block your actions.

This can be done differently for different antivirus solutions. On our site you can find information on how to add a program to the exceptions in various antivirus solutions, such as Kaspersky, Avast, NOD32, Avira.

Reason 2: Firewall

This cause is similar to the previous one. A firewall is a kind of network control, but it is built into the system. You can block programs from connecting to the Internet. The solution is to disable it. Let's see how to do it using Windows 10 as an example.

Also on our website you can find how to do it on Windows 7, Windows 8, Windows XP systems.

  1. In a Windows search, enter the word Firewall.
  2. Open . "Windows firewall"..
  3. There, we are interested in the article "Allow interaction with an application or component in Windows Firewall".
  4. In the list that appears, find TeamViewer and check the items "Private". и "Public"..

Reason 3: Program malfunction.

The program itself may have stopped working due to some file corruption. To solve the problem it is necessary:

Uninstall TeamViewer.
Reinstall by downloading from the official website.

Reason 4: Bad start.

This error can occur if TeamViewer is started incorrectly. You need to right-click on the shortcut and select "Execute as an administrator"..

Reason 5: Problems on the developer side

The extreme possible cause is problems on the servers of the program developers. There is nothing to do here, you can only find out about possible problems and when they will be temporarily solved. Look for this information on the official community pages.

Go to the TeamViewer Community


Those are all possible ways to fix the error. Try each of them until one suits and solves the problem. It all depends on your specific case.

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