Windows Server Hyper-V guests cannot see each other on network

Posted by Noldorin on Server Fault See other posts from Server Fault or by Noldorin
Published on 2011-11-30T00:01:02Z Indexed on 2011/11/30 1:54 UTC
Read the original article Hit count: 495

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hyper-v

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windows-server

I have a Hyper-V physical machine along with two standard laptops running within my LAN (connected by an ASUS-RT56U router). The physical server runs Windows Hyper-V Server 2008 R2, with two Windows Server 2008 R2 (full) guest VMs installed and running within.

Both laptops run Windows 7. All OSs are 64-bit.

Opening up Network in Windows Explorer on either of the two laptops displays both of the laptops in the LAN fine. However, neither of the guest VMs on the server (nor the host itself) are displayed. Indeed, the guest VMs can not see each other in Network view either. I can ping all computers (laptops and servers) without problems from within the LAN, but all of the servers are simply not visible from anywhere.

In addition, the Network Map screen (accessible via Network and Sharing centre) gives me an error message:

"An error happened during the mapping process."

And I'm suspecting this might have something to do with how LLTP (Link Layer Topology Protocol) is working on the network. Worth noting though is that before my server was on the network, the Network Map screen displayed fine (as far as I can remember).

© Server Fault or respective owner

Windows Server Hyper-V guests cannot see each other on network

Posted by Noldorin on Super User See other posts from Super User or by Noldorin
Published on 2011-11-30T00:28:23Z Indexed on 2011/11/30 1:56 UTC
Read the original article Hit count: 495

Filed under:

hyper-v

|

windows-server

I have a Hyper-V physical machine along with two standard laptops running within my LAN (connected by an ASUS-RT56U router). The physical server runs Windows Hyper-V Server 2008 R2, with two Windows Server 2008 R2 (full) guest VMs installed and running within.

Both laptops run Windows 7. All OSs are 64-bit.

Opening up Network in Windows Explorer on either of the two laptops displays both of the laptops in the LAN fine. However, neither of the guest VMs on the server (nor the host itself) are displayed. Indeed, the guest VMs can not see each other in Network view either. I can ping all computers (laptops and servers) without problems from within the LAN, but all of the servers are simply not visible from anywhere.

In addition, the Network Map screen (accessible via Network and Sharing centre) gives me an error message:

"An error happened during the mapping process."

And I'm suspecting this might have something to do with how LLTP (Link Layer Topology Protocol) is working on the network. Worth noting though is that before my server was on the network, the Network Map screen displayed fine (as far as I can remember).

© Super User or respective owner

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