our wsus server is running as vm on 2008 r2 in a failover cluster and we use scvmm.
we had an issue with the disk filling up. we deleted data. we noticed some services would not start. we rebooted. After the reboot, it could not ping. it had a static address. it could not ping its gateway; destination unreachable.
I've tried the following
uninstalling network driver, shutdown, uninstall network card, readd network card
update hyperv integration svcs, uninstall network card, reboot
dhcp cannot get an address
moved to another node on the cluster
changed the hyperv network (thus changing Ethernet port on the physical server)
It maybe something within windows 2003 tho. I think this cus I have other vms on the same network and clusternode that can ping.