@RogersDave it's worth noting that a lot of SmokePing configurations (the DSLReports one in particular) bumps the default ICMP packet size from 56 bytes to 1024 bytes for testing purposes. I wonder if this is what is causing SmokePing to show issues ...
Interesting. I'm not sure if that's what I'm seeing though, as fping6's timeout is set to 500ms.It started happening around 23:00 yesterday. Curiously, I've also stopped being able to access my modem in bridge mode on 192.168.100.1 since then. @Roger...