I have 2 windows 2012 R2 servers in a production environment. Both are VM's and configured same with the ip address as different. I haven't recieved alert of any kind of network failure for one machine. But second machine fails intermittently.
When I try to connect through rdp, it never connects. No pinging too.. But telnet to 3389 works perfectly. I login to that machine through console, and looked the network adapter settings and I could find no change in already configured settings, but I could find an exclamation mark near to the network icon in the taskbar.
Tried troubleshooting and the result was
"your computer appears to be correctly configured but the device or resource (www.microsoft.com) is not responding"
When I disable and then re-enable the network interface card, then it will work fine. I can take RDP as well as pinging works perfect.
Googled and found this post, but when I checked, no updates have been installed in that server. Have anyone experienced this kind of issue yet??
Any help would be really appreciated..
Best Answer
I'm assuming that the VMs are running in a Hyper-V environment (on server 2012 R2)?
Depending on what nics your host is using, and how you've configured them, this is a known issue.
See more details here:
http://www.hyper-v.nu/archives/mvaneijk/2013/11/vnics-and-vms-loose-connectivity-at-random-on-windows-server-2012-r2/