Error message "Could not connect to partner"

varunbhide · 2021-09-14T06:11:16+00:00

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Hi All,

Have been receiving this error message for the past 4 weeks on all my systems. It states "Could not connect to partner...Connection not established...Authentication cancelled"

I have browsed through many forums to find a solution but none of them has helped me.

I have tried:

1) Uninstalling and reinstalling TV

2) Manually deleting registry entries pertaining to TV and reinstalling TV

Could someone kindly assist me in rectifying this problem?

Thanks in advance!

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Accepted answers

Justin

Hello @varunbhide,

A computer is only reachable if it is turned on, has a stable internet connection and if TeamViewer is active.

Also, make sure your antivirus and firewall does not block TeamViewer. In addition, check if the ports 5938, 443 and 80 are open on the remote side (Ports used by TeamViewer for connections).

Furthermore, you can disable the IPV6 protocol in your adapter, as it helped some with a similar issue.

Best,

Justin

All comments

varunbhide

Hello @Justin ,

Forgot to mention, all systems are turned on, have a stable internet connection and show "Ready to connect" in TV.

Exceptions have been added in Antivirus and Firewall along with opening of ports 80, 443 & 5938 in UDP & TCP/IP.

Unfortunately, disabling IPV6 is not an option for me as it breaks my Home Network connections and Groups.

Is there any other work-around?

Best,

Varun

Ephraim_idea

I think in my case it was the monitor being off + TV not working in headless mode...

dentnick

I have the same problem with the last version

any solution?

Justin

Hello @varunbhide,

A computer is only reachable if it is turned on, has a stable internet connection and if TeamViewer is active.

Also, make sure your antivirus and firewall does not block TeamViewer. In addition, check if the ports 5938, 443 and 80 are open on the remote side (Ports used by TeamViewer for connections).

Furthermore, you can disable the IPV6 protocol in your adapter, as it helped some with a similar issue.

Best,

Justin