SE-STA-003: Certificate fingerprint mismatch
The Hub at the paired address is showing a different certificate from the one this device paired with. Either the Hub was reset, reinstalled or replaced its certificate, or something else is answering in its place. The app cannot tell these apart, so it stops.
What it says
SE-STA-003: certificate fingerprint mismatch
Where you see it
Only in the Hub's log (journald; also Settings > Logs on its web page, in a browser that is signed in), when the Hub replaced an old certificate at start: the line says paired devices will refuse to connect (SE-STA-003) until they pair again. The app shows the same situation as "That is not the Hub you paired with" under More > Hub, without the code.
What to do
- 01In the app, choose More, then Hub, and read the message.
- 02If you reset or reinstalled the Hub, choose Unpair this device, then set it up again from the code on its screen (see Set up a Hub from the app).
- 03If you did not, do not pair with it. Check what is answering at that address.