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#Teamviewer 11 protocol negotiation failed how to
#Teamviewer 11 protocol negotiation failed install
#Teamviewer 11 protocol negotiation failed windows

#Teamviewer 11 protocol negotiation failed install

In such a case, you will have to install antivirus software and scan your PC thoroughly so that it can clean your system up. If your system is infected with virus and malware, you won’t be able to make a connection. Disabling Third-Party Antivirus Solution 3: Scan your PC In such a case, what you can do is add an exception in your antivirus software and you should be good to go. If it works, this means that your antivirus is the culprit. Therefore, disable the third-party antivirus software that you are using and then try connecting using TeamViewer. However, in some cases, these features also tend to be troublesome as they block something that they are not supposed to.

Modern antivirus software now comes with features that help you protect your internet activity and keeps away all the skeptical things. Solution 2: Disable Third-Party Antivirus

#Teamviewer 11 protocol negotiation failed windows

There, tick the ‘ Turn off Windows Defender Firewall’ under both Private and Public network settings.

On the left-hand side, click on ‘ Turn Windows Defender Firewall on or off’.Open up the Control Panel and then navigate to System and Security > Windows Defender Firewall.Press the Windows Key to open up the Start Menu.In such a case, you will have to temporarily disable Windows Firewall to see if the connection is successful. Solution 1: Disable Windows FirewallĪs we mentioned, the issue can be due to the Firewall functionality of Windows.

We advise you to go through all the solutions as they are scenario dependent. Now that you are aware of the possible causes of the error message, let us get into the solutions and get your issue sorted out. In such a case, make sure TeamViewer is up-to-date in both the systems.

Different Version of TeamViewer: The error message might also appear if you are running a different version of TeamViewer as compared to the remote desktop.

They had to run antivirus software to wipe out all of the malware.

Malware on the System: Some users reported that the issue for them was caused due to their infected computer.

Third-Party Antivirus: There are also possibilities that the antivirus might be interrupting with the connectivity process of TeamViewer due to which you receive the error message.

Windows Firewall: In some cases, the Windows Firewall might be blocking the incoming or outgoing request sent by TeamViewer due to which you are not able to connect to the remote desktop but rather get the error message.

Since the error message pops up while trying to connect to another TeamViewer user, this can due to the following reasons: What causes the TeamViewer Protocol Negotiation Failed Error Message?

#Teamviewer 11 protocol negotiation failed how to

Nonetheless, we will be showing you how to solve the issue in this article.

When the connection is being interrupted by a background process, TeamViewer is not able to establish a connection with the targeted user successfully due to which it throws the error message. This often happens when something on your system is interrupting with the connection such as your antivirus or the Windows Firewall. This error message appears while you are trying to connect to a remote desktop. One of the issues faced by users is the Protocol Negotiation Failed error message. Even though Windows has a similar software by default for connecting to other desktops, however, TeamViewer is still preferred by many users for its features and simplicity. TeamViewer is a remote control desktop sharing software through which you can transfer files and have conversations with the user at the same time.