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Hyper-V Networking Issue : DHCP grabs a correct IP address / Gateway / DNS but no traffic, cannot ping gateway

Good morning,

I am having an issue with my main hyper-v host.  Last week my virtual servers on this host all started getting the yellow ! and we could not ping / communicate with the server.  I rebuilt the Virtual Switch, verified it was attached to all my virtual
servers/clients, all fired away with no issues.  

This morning, after the weekend, same thing.  My main SCCM server has the yellow ! and I cannot ping it or talk to it anywhere on my network. 

The odd thing is, I took the static IP out of the network adapter and set it for DHCP and it grabbed a valid IP/gateway/DNS/etc…but it cannot talk to anything.  I made sure the "Allow management operating system to share this network adapter"
was checked…it still is.  

Any ideas/pointers for me to try?

Thanks in advance!

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Hyper-V Networking Issue : DHCP grabs a correct IP address / Gateway / DNS but no traffic, cannot ping gateway

Good morning,

I am having an issue with my main hyper-v host.  Last week my virtual servers on this host all started getting the yellow ! and we could not ping / communicate with the server.  I rebuilt the Virtual Switch, verified it was attached to all my virtual
servers/clients, all fired away with no issues.  

This morning, after the weekend, same thing.  My main SCCM server has the yellow ! and I cannot ping it or talk to it anywhere on my network. 

The odd thing is, I took the static IP out of the network adapter and set it for DHCP and it grabbed a valid IP/gateway/DNS/etc…but it cannot talk to anything.  I made sure the "Allow management operating system to share this network adapter"
was checked…it still is.  

Any ideas/pointers for me to try?

Thanks in advance!

Read full post . . . .

i am installing Windows server essentials 2019

I have would like to know the following

1 if i install the host do i allocate the whole 4 TB drive that i set up using raid 1 or do i create 2 partitions?

2 Once i have installed the essentials on the host, how many virtual guests can i install ?

can i install a domain on one vm

file shares on another

and dhcp on another

or do i just install the domain controller on the one virtual machine with all the services?

Essentials has limitations, but i only have 10 users on it.  they need to share specific files, but not all users 

are allowed access to all the files.

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Cannot Create External Network on VLAN Based NIC

The NIC is an Intel I211 which has 2 VLANs on it.  If I try to bind one of the VLAN interfaces to an external network I get an error.  If I remove the 2 VLAN interfaces and try to create a virtual switch it is created.

[Main Instruction]
Error applying Virtual Switch Properties changes

[Content] Failed while adding virtual Ethernet switch connections.

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Hyperv OS 2019 vs Veeam vs checkpoints

Hey.

dunno if this is Veeam related problem or hyperv, here’s the story.

Hyperv server - 2012 R2 with three VMS (2 linux machines and one OS 2016 VM).

Created a new server OS 2019 with hyperv role installed.

Turned off virtual machines on 2012R2 and live migrated to hyperv 2019.

Installed veeam backup and replication on OS 2019 and configured daily backups of virtual machines.

It works for 2-3 days then it stops working with an error about checkpoints.
I think it’s hyperv issue and not veeam issue.
For example if I want to edit disk on a virtual machine it’s greyed out stating that checkpoints exists (but there are no checkpoints?!?). Creating checkpoints manually not working, throwing an error.

But if we reboot Hyperv OS 2019 server then everything is OK. On VM settings we can edit the disk (it isn’t grayed out more). And backups are running with no problem.

Any clues?


BCR

Read full post . . . .

Hyperv OS 2019 vs Veeam vs checkpoints

Hey.

dunno if this is Veeam related problem or hyperv, here’s the story.

Hyperv server - 2012 R2 with three VMS (2 linux machines and one OS 2016 VM).

Created a new server OS 2019 with hyperv role installed.

Turned off virtual machines on 2012R2 and live migrated to hyperv 2019.

Installed veeam backup and replication on OS 2019 and configured daily backups of virtual machines.

It works for 2-3 days then it stops working with an error about checkpoints.
I think it’s hyperv issue and not veeam issue.
For example if I want to edit disk on a virtual machine it’s greyed out stating that checkpoints exists (but there are no checkpoints?!?). Creating checkpoints manually not working, throwing an error.

But if we reboot Hyperv OS 2019 server then everything is OK. On VM settings we can edit the disk (it isn’t grayed out more). And backups are running with no problem.

Any clues?


BCR

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Clusterstorage unavailable

2-node 2016 Cluster with problems accessing the cluster storage: This morning I noticed that only the node owning the CSV can access it.

If I try to browse it from the other host I get "Location is not available. C:clusterstoragevolume1 is not accessible. The referenced account is currently locked out and may not be logged on to".

If I change ownership of the CSV from node2 to node1, then node 1 can access it, but not node2.

I suspect that the AD administrator has altered the setting for password and lockout, but I cannot figure out how to resolve this. Both nodes are domain members.

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Hyperv replica bandwidth calculator

Hi, 

I’m exploring hyper v replica solution for system center, sccm, sco & scsm. How can i calculate how much bandwidth will be require? 

At the moment i don’t have the environment to test out. 

https://www.microsoft.com/en-us/download/details.aspx?id=39057

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2 Hyper-V host (win2k12 stanard), VMs are unable to contact other VMS and Host

I configured 2 host with Hyper-V Manager , Host 1 (192.168.1.20) - VM1 (192.168.1.8) & VM2  (192.168.1.9) and Host 2 (192.168.1.100) - Vm3 (192.168.1.101) & Vm4 (192.168.1.104), and my computer 192.168.1.80 and gatway 192.168.1.1. Now Vm1
is able ping to their host & other VM hosted on same host and other computers and gateway n vice versa, but unable to ping other host 192.168.1.100 and thier vm and vice versa. please let me possible solution.

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Hyper-V Server 2019 still bugged… blue screen after install

Installing this on a fully (firmware) updated HP Prolient DL380 Gen9 SD card causes an ‘inaccessible_boot_device’ blue screen on boot just after the install finishes. 

Server 2019 Standard installs and works fine.

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