Hello Richard,

It looks like that the software cannot connect to the machine in question, so firstly I would start from Firewall permissions or any other security software installed on the machine.

I guess I am not sure why it would suddenly stop working when no changes have been made on the computer. It worked fine previously.

Hello Richard,

I agree, but for example, updating virus databases may lead to locks or heuristic reaction. Has the situation changed?

Not that I am aware of. It just stopped from one day to the next.

So I went to the remote computer and the permissions for remote assistant are all active. Now what?

I would suggest trying to connect from the remote machine somewhere to test the connection and the software's ability to connect.

I don't understand this suggestion. From which machine to which machine?

'cannot connect: looks like remote computer is offline or id is incorrect' — Richard Arnold

From the one you mentioned in this quote to any other, just to check the total ability of the software to connect from it.

I reinstalled it and it works!

Glad to hear that the issue is resolved, perhaps there was some issue during the installation process. Let us know if you encounter anything else.