I own a DQ77MK mainboard. It's equipped with two gigabit NICS: an 82579LM and an 82574L. One NIC is connected to a production segment, one to a management segment. The 82574L fails frequently, after somewhere in between half a day and a week. A check right after connectivity is lost shows that - according to Windows - the NIC is disconnected from the network. this is NOT the case: NIC LEDs are still active and the link on the switch is still up. After a couple of seconds the NIC completely disappears from the Windows network control panel. If I swap the network cables and IPs the problem reoccurs on the other network so it seems to be 82574L related.
DQ77MK BIOS 0054
NICs connected @ gigabit
Problem is reproducible on Windows 7, 8 and 2012 server
Driver Provider: Microsoft
Driver Date: 2/29/2012
Driver version: 220.127.116.11
Provider: Intel Corporation
File Version: 18.104.22.168
Any clues about what's going on? Hardware / firmware / driver bugs? Something else? Thanks!
Hmmm, news about a 'packet of death' for the 82574L and talks about an EEPROM update to fix this @ http://blog.krisk.org/2013/02/packets-of-death.html Not Just AstLinux Stuff: Packets of Death. This might be related...