Hyper-V VM unable to ping gateway but host can
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@Dashrender Any new VM's created run into the same problem. Can't ping host. Can't ping each other. Can't ping gateway.
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Did you specify the VM Switch in the VM?
Did you disable VMQ?
Did you change any advanced features away from default?
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Morning everyone.
We're running Hyper-V version 6.1.7601.17514 on a Dell Poweredge 2900 on Windows Server 2008 R2. This is a Server 2012 R2 VM running on a 2008 R2 Host (unsure if that matters but just giving as much information as I can). I was asked to look at it as a second pair of eyes but nothing immediately jumped out at me until I saw this:
You'll notice that I can't expand the network adapter. I think this is due to the fact that the host machine is running 2008 R2, but I haven't actually attempted to run a Hypervisor in it--every other VM host we have is 2012.
Is this correct?
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Check and make sure the vSwitch is an external vSwitch.
Is this the only VM on this host?
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@wirestyle22 said in Hyper-V VM unable to ping gateway but host can:
Morning everyone.
@JaredBusch I did specify the virtual switch
We're running Hyper-V version 6.1.7601.17514 on a Dell Poweredge 2900 on Windows Server 2008 R2. I was asked to look at it as a second pair of eyes but nothing immediately jumped out at me until I saw this:
You'll notice that I can't expand the network adapter. I think this is due to the fact that the host machine is running 2008 R2, but I haven't actually attempted to run a Hypervisor in it--every other VM host we have is 2012.
Is this correct?
Any conflicts with that mac address on the network?
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@coliver said in Hyper-V VM unable to ping gateway but host can:
@wirestyle22 said in Hyper-V VM unable to ping gateway but host can:
Morning everyone.
@JaredBusch I did specify the virtual switch
We're running Hyper-V version 6.1.7601.17514 on a Dell Poweredge 2900 on Windows Server 2008 R2. I was asked to look at it as a second pair of eyes but nothing immediately jumped out at me until I saw this:
You'll notice that I can't expand the network adapter. I think this is due to the fact that the host machine is running 2008 R2, but I haven't actually attempted to run a Hypervisor in it--every other VM host we have is 2012.
Is this correct?
Any conflicts with that mac address on the network?
No there isn't
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@dafyre said in Hyper-V VM unable to ping gateway but host can:
Check and make sure the vSwitch is an external vSwitch.
Is this the only VM on this host?
It's external
They are using this as a very small file server in addition to the VM but it's the only VM hosted currently.
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@wirestyle22 said in Hyper-V VM unable to ping gateway but host can:
@dafyre said in Hyper-V VM unable to ping gateway but host can:
Check and make sure the vSwitch is an external vSwitch.
Is this the only VM on this host?
They are using this as a very small file server in addition to the VM but it's the only VM hosted currently.
Why does it have a static MAC? I know nothing of Hyper-V setups, but that seems odd unless they P2V'ed the VM.
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@Dashrender said in Hyper-V VM unable to ping gateway but host can:
@wirestyle22 said in Hyper-V VM unable to ping gateway but host can:
@dafyre said in Hyper-V VM unable to ping gateway but host can:
Check and make sure the vSwitch is an external vSwitch.
Is this the only VM on this host?
They are using this as a very small file server in addition to the VM but it's the only VM hosted currently.
Why does it have a static MAC? I know nothing of Hyper-V setups, but that seems odd unless they P2V'ed the VM.
I had it set to dynamic before, it was just a test.
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Have you tried removing the virtual NIC and reinstall it?
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@Dashrender said in Hyper-V VM unable to ping gateway but host can:
Have you tried removing the virtual NIC and reinstall it?
Yes I did. I'm wondering if this has anything to do with the fact that the Dell Poweredge 2900 was one of the first generations to support Hyper-V.
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Can you see the vSwitch in the Hyper-V setup itself?
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@Dashrender You mean in the Virtual Network Manager?
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This is what I see.
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I really think that this is because the host is 2008 R2 but I don't have enough experience to definitively say that with zero doubt.
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I'm not sure if Hyper-V 2008 R2 supports a Server 2012 VM or not. that could be the issue.
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Yup. That is the case. https://msdn.microsoft.com/en-us/library/cc794868(v=ws.10).aspx
Thanks guys.
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Well the good thing is - you can upgrade the hypervisor for free. shut the VM down, copy it somewhere else, wipe the host, reinstall Hyper-V 2016 server, copy the VM back, tada.
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@Dashrender Yeah that's basically my plan. I'm glad I rad into this. My co-worker tried and I had never attempted to do this before. It's good to know.
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My bigger question is - why was he deploying a single VM onto a 5 year old hypervisor, when upgrading/installing the latest is free?
Oh, I'd skip 2012R2 at this point as well, and go straight to Hyper-V 2016.
