Hey!! I was going to reach out to you actually... I had something funky come up with my nighthawk. After getting some new Google products because I'm super behind in technology, my nighthawk on really old (but very stable) firmware decided it wanted to turn on ReadySHARE and all the ReadyJUNK in addition to something called TiVo Connect. For the past week my LAN just dragged... horrible latency spikes and whatnot. Turned it off and all went back to (sort of) normal. The TiVo thing was just requesting multicast heartbeats over and over every minute or so, then all my cast-enabled devices (laptop, pixel phones, etc) would all respond at the same time so this giant London-wipee sized chunk of "YES IM HERE" beacons would clog up my LAN. In short, have you ever experienced that?
Also... I miss Gwalk a whole bunch :(
~Amanda
edit: by the way, I labeled our modems in the lab the same way you did, lol.