[neilv]

MTR has long been one of the first little tools that I install on workstations.

    sudo apt install mtr-tiny

I also have a hotkey to pop it up in a window, pinging to some host that'll always be somewhere on the other side of any ISP from me. Whenever I suddenly suspect a networking problem from my laptop, I hit the hotkey as the first troubleshooting step. MTR starts to narrow down a few different problems very quickly.