Thin Client and Virtual Machines Thread, Hyper-V VMs lost all Network Connectivity in Technical; I have a Hyper-V Enterprise Full 2008 R2 install (not core). Been running fine with 4 x SVR 2008 R2 ...
14th March 2012, 12:38 PM #1
Hyper-V VMs lost all Network Connectivity
I have a Hyper-V Enterprise Full 2008 R2 install (not core). Been running fine with 4 x SVR 2008 R2 VMs, 2 x 2003 VMs, 2 x XP VMs. Yesterday decided to install WDS on the host. Since then all my VMs cannot communicate with the outside world. Cannot ping the host or any devices on the physical network. Nothing has changed as far as I can see except WDS was installed. Uninstalled WDS but still wont connect. I can use Hyper-V manager to connect to each and start shutdown etc but cannot communicate with any from the network.
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14th March 2012, 12:42 PM #2
Its something to do with the virtual network connection I think. We had a similar problem.
I will dig around and see if I can find the solution and let you know.
14th March 2012, 12:59 PM #3
Does the NIC still appear within the VMs when you login locally?
Basically installing WDS messes with the NIC on the physical host, this change has go on to affect the VMs who connect via the same NIC. You probably jsut needs to reassign the NIC to the VMs in HyperV.
Thanks to Achandler from:
14th March 2012, 02:06 PM #4
I had to delete the Virtual Network connection in the Hyper V manager and recreate it. I used a different physical port and then pointed each VM to the new Virtual connection.
All working now.
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