How to troubleshoot connection error

[Nomis69]

Hello!

We use TeamViewer Manager version 9 to connect to servers around the country. Last week I changed the public IP address at a customer site, and since then I cannot connect to their host. I have not changed any other router/firewall configuration.

This is the first time I'm having problems with TeamViwer and find that there's not much I can do troubleshooting-wise. The Partner ID is the same as it used to be, both on host and in the Manager, and that's about the only configuration I can work with(?).

What can I do, check, to troubleshoot this issue? (I can access the TV host server via RDP from a Remote Desktop Server on the customer site.)

[matt]

can you connect the other way?

from your customer's computer back to yours?

[Nomis69]

Thank you for replying to my post, matt. When trying to establish a remote connection to my computer via TeamViewer, I got the (expected) message that I can't start TeamViewer becaust there's already an instance of it running (the host). So I thought I turned the Windows service off, and then I thought, hey, why don't I try to restart the service and see if that helps. It did.

So it seems that for some reason the TeamViewer host on this server was not accessible after we implemented a new internet connection, but when we restarted the TeamViewer service it started to work again.