Anyone having odd disconnect issues?

ONLY the toon running in the backround disconnects. very strange. 3 seconds after logging on i disconnect.

i also posted this on the wow tech support forum
http://us.battle.net/wow/en/forum/topic/15700056544#1

I've been running sets of five without any issues..... As of yesterday anyway.
Connecting via cox in AZ.

Tweaked my network cards settings so it was 100 full duplex and not in power conserving mode. Deleted my Cache, and WTF files and started from scratch. Haven't had a problem since.

Sounds like an ethernet switch losing its mind. I have some Netgear switches here that do that and just need a reboot from time to time.