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Hyper-v guests cannot connect to internet

Experts,

I am running Windows Server 2008 R2 Hyper-V and having issues with my VMs accessing the internet using the default network adapters. The only way they can access the internet if I change the adapter to legacy on the VM.

- The server running hyper-v is an HP ML350 G5, 2 X 2.6ghz intel procs, 6 X 1TB drives, 3 X Physical NICs, 16GB RAM
- This happens with multiple VMs that are running various OS's (Server 2003, Server 2008).
- DNS is set correctly on the host and VMs, and they can all resolve each others names internally just fine.
- The vNetwork is binded to one of the physical NICs on the server and allows external access

I have a read a couple MS forum posts about this issue, but no real reason or fix to the issue.
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juggernaughty
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juggernaughty
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1 Solution
 
adiloadiloCommented:
do you have guest tools installed on all those virtual servers ? did you try creating a Vlan Segment ?
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juggernaughtyAuthor Commented:
Guests tools are of course installed on all these VMs. I have not created a VLAN segment but is that necessary?
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juggernaughtyAuthor Commented:
The issue was the HP NC110T NICs that were installed on the server. Upgrading the drivers from what was installed by default solved the issue.
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