Hi Stephan
if you have these black actual cablecom modems, or older ones - a reboot once a month helps..... why ever this device lames with higher uptimes. horizon was simply a mess....
I'm in luck and have a classic Ubee modem, no UPC router or Horizon box. Reboot didn't help, was exactly the first thing I did when the connection troubles started to show up. I even rebootet my pfSense APU, upgraded to the latest version, run diagnostics, etc. There is still a small possibility that my router does something strange here, I guess I'll do some tests using a spare EdgeRouter laying around. And there is hope that the Turris Omnia Router will ship soon =)
Cheers, Tobias