Posted by Yoyo2
Henagon

Connection could not be established, Reason Unknown

I have been trying to access my computer remotely, but I keep getting "a Connection could not be established, Reason Unknown" 

Both computers have the same version, so I tried to use a spare computer, the issue still persisted.

Is there any solution to the problem?

5 Replies
Posted by Moderator Moderator
Moderator

Re: Connection could not be established, Reason Unknown

Hi @Yoyo2 ,

Thank you for your post.
Could you please check if you are using the latest version of TeamViewer?
This might help this situation.
New version.png

All the best,
Yuri

Posted by Yoyo2
Henagon

Re: Connection could not be established, Reason Unknown

I updated the version of the computer and the issue is still the same.  It orginally was connecting well and suddenly the issue happened.

Posted by Moderator Moderator
Moderator

Re: Connection could not be established, Reason Unknown

Hi @Yoyo2 ,

Thank you for your reply.
In this situation, it is difficult to find the exact reason without a logfile.

However, you might be able to do the following checks:

Your general setup

  • Is your Internet connection working?

Did anything change on your IT setup

  • Can TeamViewer reach the Internet?
    • If not, please open Port 5938 for outgoing connections

Did TeamViewer work just a few minutes ago

  • Did you check our Status page
    • Here we post updates about the current TeamViewer system status

Operating system

Hope this will be helpful.

All the best,
Yuri

Posted by tk10935
Henagon

Re: Connection could not be established, Reason Unknown

I'm getting the same "reason unknow" message when I try to connect to my laptop from my iPad and the connection fails.  this just started happening in the last week.  Here is a TV suggestion to someone else having the same problem.   Can you tell me how to check and open the Port?  

Can TeamViewer reach the Internet?

  • If not, please open Port 5938 for outgoing connections
Highlighted
Posted by alexlarigola
Photon

Re: Connection could not be established, Reason Unknown

Same problem here. Say needs to update but after give me same error. No ideea why. I use it maybe once a month the free version.