I’ve tried both the e1000 and the vmxnet3. Tools are up to date. Tried those. It appears to be more of windows problem because the issue doesn’t follow the vSwitches or anything.
One VM will lose it’s connection to say our NFS network (which is isolated so copying files doesn’t eat bandwidth on our main internal network) but every other VM will still be alright and connected even though they’re going through the same physical switch, the same vswitch, and are on the same physical NIC with the same cable. It’s pretty mystifying. Guessing it’s a Windows thing, but I can’t seem to find any documentation on multiple NICs specifically. Everytime I search it’s just about people losing their connection to the internet and not a secondary network. One thing is that they seem to lose their connection to the network that doesn’t have a gateway…not the one that does. -R From: [email protected] [mailto:[email protected]] On Behalf Of Jack Kramer Sent: Thursday, June 11, 2015 10:00 AM To: [email protected] Subject: Re: [NTSysADM] What vNICs are you using? (E10000 or vmxnet3?) Tools up to date? vSwitch settings? (Disabling MAC changes, promiscuous mode, etc?) On Jun 11, 2015, at 12:51 PM, Robb Whiting <[email protected]<mailto:[email protected]>> wrote: Hello Everyone, I have an annoying problem that’s been vexing us for months now. All our servers are virtualized with static IPs running on VMware hypervisors. The servers that have connections to more than 1 ip sometimes drop their connection. Other machines connected to the same network don’t lose their connection so I don’t think it’s the link between the hypervisor and the switch. It appears to be a windows problem. Anyone else have servers running Windows 2k12 R2 that are connected to multiple networks that somehow lose connection randomly from time to time. If we disable and reenable the NIC then they come back up but they really shouldn’t go down at all. Ideas? -Robb
