I have a number of hints that my internet connection doesn’t work right. I see things like can’t connect to addresses from docker, pages will be slow in my browser. Before I used ethernet to my router, I would sometimes disconnect from the internet. Aside from disconnecting, none of it was a clear sign something is unusually broken. Is there some linux (Ubuntu) tool I can use to assess the long-term health of my connection?
A nice to have: the tool would tell me whether a fault is in my drivers, settings, adapter, router, connection to the house, or my provider.
Basically this. You could start easy and basic with gatus. Monitor at least your gateway, the isp gateway and dns resolving.
do you know if there’s a free version of gatus? I could only see a 7 day trial
Tried it a few months ago, self hosted was free https://github.com/TwiN/gatus
(Otherwise uptimekuma or something, there are plenty of tools out there. If you wanna do it right 1st time for free : checkmk and or librenms, but it might be overkill for you just yet)