?
Solved

Moved VM from one 2008 R2 machine to another - now network won't work

Posted on 2014-09-27
4
Medium Priority
?
150 Views
Last Modified: 2014-10-24
I moved a Windows Server 2008 R2 VM from one Windows Server 2008 R2 host to another. When I started up the VM everything seemed ok, but the network didn't work. It was showing up as an unknown device. I tried to installed the Hyper-V Integration Services.....but they just spun around and never did anything. I tried removing the network adapter and adding it again, no dice. I added a legacy network adapter. No dice. I extracted the files from the HyperVIntegrationServices6.1 cabinet fie and tried to install the drivers manually. No dice there either.

Manually installing the legacy network adapter won't work at all - won't find the device, driver, notta. If I manually install a driver for the regular (non legacy) network adapter I get "This device is not configured correctly."

Any idea what has happened or how I can fix this?
0
Comment
Question by:mvalpreda
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 46

Expert Comment

by:Craig Beck
ID: 40348688
The NICs need to be named EXACTLY the same on each Hyper-V host.  If you move a VM from a host which attached the guest VM to "Local Area Connection 1" to a host which tries to attach the guest VM to a NIC called "Local Area Connection 2" the network connection won't work after the migration as the config file specified "Local Area Connection 1", and that may not be present, or attaches to the wrong network at the new host.
0
 
LVL 37

Expert Comment

by:bbao
ID: 40349043
you really no need to do anything INSIDE the VM as it was caused by incomplete or incompatible settings of virtual networks.

the most easy way is to go back to the previous VM host server and copy all virtual networking settings from there. Or, open the XML based configuration file of the VM and grab required Virtual Network names, types, and set up new virtual networks on the new host accordingly. be aware that some infrastructure settings such as DHCP and NAT settings should be also correctly configured as per the VM requirements.

hope it helps.
bbao
0
 
LVL 46

Expert Comment

by:Craig Beck
ID: 40349063
...or just use the same NIC names on each Hyper-V host, as documented by Microsoft!
0
 
LVL 25

Accepted Solution

by:
Lionel MM earned 2000 total points
ID: 40349689
In the moved VM remove the NICs and then add new ones back.
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If your vDisk VHD file gets deleted from the image store accidentally or on purpose, you won't be able to remove the vDisk from the PVS console. There is a known workaround that is solid.
Giving access to ESXi shell console is always an issue for IT departments to other Teams, or Projects. We need to find a way so that teams can use ESXTOP for their POCs, or tests without giving them the access to ESXi host shell console with a root …
This tutorial will give a an overview on how to deploy remote agents in Backup Exec 2012 to new servers. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as connecting to a remote Back…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question