Ok this is an odd one I have been carrying on my back for 3 years now and only found workarounds so far, but it's getting idiotic at this point as I had a whole escalation this morning.

Basically, I noticed in 2023 that, every now and then, some devices in a routed network were not reachable anymore. Nothing. Yada yada. Disappeared.

Thinking they had simply stopped working (it happens) I logged in on a host on the network, pinged the devices and lo and behold, they are alive but not reachable from the external routed network.

Several hours of troubleshooting after, I discovered that ALL passive devices that were not actively trying to reach external networks after hours seemed to entirely disappear from the network and, after a routed ping through the MOXA EDR-G9010 router, they reappeared as if nothing happened.

This has been going for years now and I have pinged MOXA multiple times to no avail.…