timeout in cli after 5s -> healed itself overnight

[thobux]

I log in via SSH and key, Timeout is set to 20 minutes (in the GUI) but even disabling it doesn't make a difference. I seems to be something else. I'm cut off after 5 secs (I counted it). I reset my router teh other day had no issues with it before. The log says something like Kernel drop.
Any ideas?

Selfhealed