I run an IPCOP router with 8 servers. (5 win2k8 and 4 win2k3)
Recently I added a new server (win2k8), and ever since then 3 of the win2k3 servers randomly go offline with network cable unplugged error. All 3 servers that this happen to have the same hardware. M5A99X EVO Motherboard, using onboard lan Realtek 8111E.
Originally I thought it was the router being overloaded or something, but every other server / comp is fine.
Once one of the affected servers goes into "network cable unplugged" mode, only way I can make it work is disable/enabling the LAN connection. Unplugging / replugging the cable does nothing. Plugging into a new network also does nothing. IPs on the servers are set statically and DHCP leases last a week. Problem occurs randomly, up to every few hours, so its not related to DHCP.
When it does occur, I can still ping 127.0.0.1. Both amber and green lights are on on the network card. Light is also on on the switch. During troubleshooting I replaced all cables and switches (just incase).
I updated all bios and drivers.
I have another server win2k8, with the same hardware that doesnt have this problem.
I am not sure how adding a new server to the network could possibly cause this problem. If relevant the new server hosts VMs (30), so it has 30 Macs and 30 IPs.
My only idea now is that maybe win2k3 + this network card do some network mapping and theres some sort of bug? My next plan is to upgrade them to win2k8 or add a PCI network card. But I am curious if anyone has experienced anything similar.
Lastly, I also tried to manually set speed/duplex, and disabled all power/green settings. No luck.
Any suggestions?
Recently I added a new server (win2k8), and ever since then 3 of the win2k3 servers randomly go offline with network cable unplugged error. All 3 servers that this happen to have the same hardware. M5A99X EVO Motherboard, using onboard lan Realtek 8111E.
Originally I thought it was the router being overloaded or something, but every other server / comp is fine.
Once one of the affected servers goes into "network cable unplugged" mode, only way I can make it work is disable/enabling the LAN connection. Unplugging / replugging the cable does nothing. Plugging into a new network also does nothing. IPs on the servers are set statically and DHCP leases last a week. Problem occurs randomly, up to every few hours, so its not related to DHCP.
When it does occur, I can still ping 127.0.0.1. Both amber and green lights are on on the network card. Light is also on on the switch. During troubleshooting I replaced all cables and switches (just incase).
I updated all bios and drivers.
I have another server win2k8, with the same hardware that doesnt have this problem.
I am not sure how adding a new server to the network could possibly cause this problem. If relevant the new server hosts VMs (30), so it has 30 Macs and 30 IPs.
My only idea now is that maybe win2k3 + this network card do some network mapping and theres some sort of bug? My next plan is to upgrade them to win2k8 or add a PCI network card. But I am curious if anyone has experienced anything similar.
Lastly, I also tried to manually set speed/duplex, and disabled all power/green settings. No luck.
Any suggestions?
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