Hyper-V on Server 2016

[cmpwat]

Morning all

 

I am having a really issue with issue with Hyper-V on Server 2016 at the moment:

 

I have a HPE C7000 Blade chassis with 4 BL460C Gen 8 blades in. I have 2 HP VC FlexFabric 10Gb/24-port Modules in the Interconnect bays. I have the Virtual connect configured like this:.

 

The blades are running Server 2016 Datacenter. The VLANs 100 & 210 are both storage iSCSI connections. VLAN30 is the host management lan. The multiple networks include VLAN 10 for the VMs management, as well as VLANS for live migration and CSV.

 

On the host, we run a PS script:

 

New-NetLbfoTeam -Name Team01 -TeamMembers Flex1a,Flex2a -LoadBalancingAlgorithm HyperVPort -TeamingMode SwitchIndependent

 

New-VMSwitch -Name VMNET -NetAdapterName Team01 -AllowManagementOS $False -MinimumBandwidthMode Weight

Set-VMSwitch "VMNET" -DefaultFlowMinimumBandwidthWeight 50

 

Add-VMNetworkAdapter -ManagementOS -Name "LiveMigration" -SwitchName "VMNET"

Add-VMNetworkAdapter -ManagementOS -Name "CSV" -SwitchName "VMNET"

 

Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "CSV" -Access -VlanId 154

Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "LiveMigration" -Access -VlanId 153

 

Set-VMNetworkAdapter -ManagementOS -Name "LiveMigration" -MinimumBandwidthWeight 40

Set-VMNetworkAdapter -ManagementOS -Name "CSV" -MinimumBandwidthWeight 10

 

New-NetIPAddress -InterfaceAlias "vEthernet (LiveMigration)" -IPAddress *.*.*.* -PrefixLength "28"

New-NetIPAddress -InterfaceAlias "vEthernet (CSV)" -IPAddress *.*.*.* -PrefixLength "28"

 

to create the Hyper V vSwitch and vNics for the cluster.

 

On the host, I am able to join the domain and ping all the servers on the domain, like the DCs, Exchange etc.

 

However, and this is the issue, I cannot join the domain or ping any servers from any VMs on the hosts (i have 4 that are having the problem).

 

I have checked the network routing and that looks fine and if there was a problem either the routing then I would expect the host to not connect.

 

The VC is configured in the same way as another chassis we have and again i would expect the hosts to not connect if there were a problem with the VC.

 

I have rebuilt the host but it is still the same. Has anyone else come across this before?