I had faced something like this a few years ago: https://dynamicproxy.livejournal.com/46862.html https://dynamicproxy.livejournal.com/46862.html Summary: the s

I had faced something like this a few years ago: https://dynamicproxy.livejournal.com/46862.html https://dynamicproxy.livejournal.com/46862.html Summary: the specific Symantec disk imaging software was partly loaded via PXE boot, and that machine started to flood the network with bad packets. Switching the computer off for a few seconds didn't help, since the SMPS capacitors still held current - enough to keep the card alive and for the sysadmins to not suspect that computer!