My 2800G resets every 20 mins or so. I don't know how long it's been doing this but I'm guessing over a week or so (didn't really notice before as it's back up and running pretty quickly).

I'm using V2.8.2 firmware, have a printer, FON router and my LAN switch connected.
I've also noticed that the corrected block count seems high (around a 40-50% of total RX+TX blocks).
SNR is 10dB, Loop Att is 44.5.
The wireless seems a little flakey but that could be to do with the resets.
I'm using an ADSL Nation XTE-2005 faceplate but not sure that's relevant as the resets occur even with broadband disconnected.

Tests:-

1. Factory reset & reload config - still resets every 20 min.
2. Disconnect printer, all LAN ports, broadband - ditto.
3. Vacuumed the case (well, it could be overheating?!) - ditto.

Further tests:-

1. I have a 2800 that I'm using as a print server - I'll pinch its power supply to test with the 2800G.
2. Reload firmware or try 2.8.2.1 beta?

Any other ideas?

Just tested with an alternate power supply - still resets every 20 mins.

18 hours + and still running.

I reloaded firmware (.RST to clear all the settings) and manually configured and the thing seems to be fine now. Suspect firmware corruption but as I didn't do one thing at a time (too damn impatient) I won't know for sure which fixed it.