Hyper-V Server 2008 R2 annoying reoccuring Virtual Network connectivity issues
-
17. března 2012 23:10
I have one hyper-v server that I run at home that hosts a few VMs. Most important one is my Windows home server that has my PC backups and all the media I stream in the house. It's a quad core AMD 945 with 16GB buffered DDR2 and 3 GBe NICs, one on the mobo (PCIe) one PCI card and another PCIe card.
I'm getting time out issues connecting to my server that I've been dealing with for months, I have iTunes on it to stream media to my apple TV/ iPads and often they can't see the server because it times out. it seems to handle ping tests fine though before it use to drop a lot of packets with ping test. However trying to transfer media or copy to files to it can be a real issue. Temporary work around seems to be either restarting the hyper-v server or to go into virtual network manager and delete the virtual switches and recreate them and assign the VMs NICs to the newly created Virtual Switches. That can last anywhere from a week to a day before I'll have to do it again.
This is happening on all my virtual switches (I have 3, one for each physical NIC). I don't think it's a hardware problem. Any ideas?
edit: I also have trouble connecting or a very slow connection to the IPs of the physical NICs when this happens
Daniel Smith
Všechny reakce
-
18. března 2012 10:51
I have one hyper-v server that I run at home that hosts a few VMs. Most important one is my Windows home server that has my PC backups and all the media I stream in the house. It's a quad core AMD 945 with 16GB buffered DDR2 and 3 GBe NICs, one on the mobo (PCIe) one PCI card and another PCIe card.
I'm getting time out issues connecting to my server that I've been dealing with for months, I have iTunes on it to stream media to my apple TV/ iPads and often they can't see the server because it times out. it seems to handle ping tests fine though before it use to drop a lot of packets with ping test. However trying to transfer media or copy to files to it can be a real issue. Temporary work around seems to be either restarting the hyper-v server or to go into virtual network manager and delete the virtual switches and recreate them and assign the VMs NICs to the newly created Virtual Switches. That can last anywhere from a week to a day before I'll have to do it again.
This is happening on all my virtual switches (I have 3, one for each physical NIC). I don't think it's a hardware problem. Any ideas?
edit: I also have trouble connecting or a very slow connection to the IPs of the physical NICs when this happens
Daniel Smith
I had the same issue with nVidia and Broadcom on-board NICs for AMD-based machines (sometimes jerky traffic, dropped frames, different performance in both directions etc). If you're @ position give a try to say Intel NICs to see would it make any difference. In my case it helped. Hope you'd manage to have your issue pinpointed and fixed :)
-nismo
-
18. března 2012 17:47They're all Realtek NICs
Daniel Smith
-
18. března 2012 17:51
-
18. března 2012 18:43Ok thanks! I disabled it on the Host OS. We'll see how it goes, I'll have to let it run for a few weeks to see for sure if it worked.
Daniel Smith
-
19. března 2012 6:09ModerátorHi,You can also check the following KBs.The network connection of a running Hyper-V virtual machine may be lost under heavy outgoing network traffic on a computer that is running Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2263829The network connection of a running Hyper-V virtual machine is lost under heavy outgoing network traffic on a Windows Server 2008 R2-based computer
http://support.microsoft.com/kb/974909Vincent Hu
TechNet Community Support
-
22. března 2012 10:26ModerátorHi,Have you tried the suggestion? I want to see if the information provided was helpful. Your feedback is very useful for the further research. Please feel free to let me know if you have addition questions.
Vincent Hu
TechNet Community Support
-
24. března 2012 2:51
Ok I'm back. The TCP offloading doesn't seem to have worked. I'm having the same issue again 5 days later.
Vincent those KB articles pretty accurately describe my situation but I tried to install the kb2263829 and it says that it's already installed on my hyper-v machine. So apparently it's installed and I'm still having this reoccurring issue
Daniel Smith
-
29. března 2012 6:02Vincent, I'm still having the problem. Any way you can help?
Daniel Smith
-
31. března 2012 20:25
I was just trying to google to see if there was a solution to this and came across this thread. I don't know if there were any updates but this is my situations.
My apple TV's were having a hell of a time connecting to my Hyper-V Win7 machine. However everything else seemed to work fine.
I finally switched the network card in the hyper-v settings over to a legacy network card and the appletv's started working perfectly.
However I only get 20-30 MB/s using that virtual card. On the regular network setting I get 100MB/s+.
As of right now I think I will install two network cards into the virtual machine. I will use the legacy card for the appletvs and the regular network virtual card for everything else. Unless I can get the appletv's to work on the regular interface.
-
2. května 2012 20:22Same problem here, but its ridiculous. What is wrong here? Is it the networkcard, virtual network router, networkcard drivers or is it just the Hyper-v role?
.png)
