Ok, the usual. Wrote to Brother tech support because the (otherwise marvelous) Brother MFC-7820N in my office goes hide-and-seek on the LAN every other week or so. It's a multi-function center that prints, faxes, copies and scans. Got the usual "Go to control panel ... blah-blah" response and if I'd call my experience is I usually get the same answer again. Done that before writing to them, of course. It's all there but the unit plain does not answer on the LAN.
The behavior is like a dirty reset. That's just my suspicion after seeing what is called, ahem, "reset circuit" on some other gear. After power cycling it always works but it's a nuisance because it is accessed via LAN from other locations.
Did anybody have this happen and found a fix? Maybe on other units that might contain similar electronics?