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Slow connection to Hyper-V Server 2019 Core

Hello,

We have two Hyper-V Server 2019 Core servers. One has been around awhile. It runs on an old PC repurposed as sort of Test system. The other Hyper-V server runs on brand new Dell T440 Server. For the most part, both servers run fine, but I am having an unusual problem with the new Dell server.

When I open Server Manager on my desktop PC, the older Hyper-V server populates in Server Manager right away. The Dell server takes a few minutes before it appears in the list of servers. If I open Hyper-V manager from my desktop, the older server populates right away and I can immediately connect to VMs, manage settings, etc. On the other hand, the Dell server takes a few minutes before it even appears in the list of servers. Then, when I select the Dell server, it again takes a minute or two before the two VMs running on it appear in the Hyper-V Manager. When I try to connect to one of the VMs, again, it takes a minute or two before the Virtual Machine Connection window appears, and then it sits there "not responding" for another minute or two before the VM's login screen appears. However, once I am connected, everything moves along without delays. Furthermore, in Hyper-V Manager, if I try to change any settings, etc., for the Dell server, it takes a while for anything to happen. With the older server, I have no such problems.

Both servers and my desktop are connected to the same switch, in a small office network. There is nothing terribly complicated about the network here. I tried running Wireshark, just to see what was happening. I see constant traffic going back and forth between my desktop and the Dell Hyper-V server while I'm waiting for the information to fill in in Server Manager, or in Hyper-V Manager, or while waiting for Virtual Machine Connection window to respond. So, at least I know it's not like there is no network connectivity, or anything like that.

I've tried using different ports on the switches, different Ethernet cables, etc. I've tried updating the Ethernet drivers, Dell server firmware, installing Microsoft Updates, etc. Nothing seems to help.

Can anyone suggest a possible solution to the problem? Or point me in the direction of finding a solution?

Thanks,

Rick

windows-server-hyper-v
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Hi,

I would like to check if the reply could be of help? If yes, please help accept answer, so that others meet a similar issue can find useful information quickly. If you have any other concerns or questions, please feel free to feedback.

Best Regards,
Joan

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1 Answer

jiayaozhu-MSFT avatar image
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jiayaozhu-MSFT answered RickHogan-3024 commented

Hi,

Thanks for your posting!

Based on your descriptions, I strongly suggest you to contact Microsoft Customer Support and Services where more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue. Since you have used Wireshark but found few things useful, you may need further research on your slow performance issue which may be not necessarily related to network. In addition, if the issue has been proved as product design issue, the consulting fee would be refund. You may find phone number for your region accordingly from the link below.

Global Customer Service phone numbers:

https://support.microsoft.com/en-us/help/13948/global-customer-service-phone-numbers

Thanks for your understanding and support! And don't forget to support us by helping Accept Answer!

BR,
Joan


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I was really hoping for some help with troubleshooting on my own, before spending more money.

Rick

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