Well, my optimism was short lived. The web terminal is broken again. Just "xxx.xxx.1.55 refused to connect". Setup works fine. I am using SSH for good maybe. I'm worried about the other web interfaces, but I don't have those break-out boards yet. This is not working on Chrome or Firefox. On a Mac.

I have the same problem with the same error message. Happened after a factory reset. It was working before the factory reset.

EDIT: A few hours later and it is working. Was using Chrome, tried Firefox and it worked. Then closed the Chrome page and a new page in Chrome is working fine.

@Mikael-Olofsson I have the same situation and question!