HP LaserJet 2420n Network Problems
I have a problem where a printer keeps going offline (not responding to ping), the printer display panel doesn't show anything wrong. I believe this is because the printer isn't handling some network activity. If I ping with the defaults (in Windows) it's fine. If I ping with a larger buffer size (eg ping -l 5000 -i 200 -w 500 it causes the printer to report service error: 49.ff09 and requires a reboot. I've tried the same on another 2420, but the other printer handles this ping fine.
I've tried upgrading the firmware from 20050823 08.109.2 to 20070410 08.112.3. This reported service error 49.4c18 part way through. On rebooting, the jetdirect interface reports the new firmware version. I tried re-running the upgrade, but the same error is reported.
If I plug in a jetdirect in the EIO, it seems to work fine and pinging doesn't cause it to crash, so the issue seems to be limited to the on-board NIC? Any ideas what component could be causing the issue?