Link to home
Create AccountLog in
Avatar of keyuk
keyukFlag for United Kingdom of Great Britain and Northern Ireland

asked on

Hyper-V Networking Drop Out

Hi,
I have an issue that has happened twice on the last 30 days on a Windows Hyper-V 2008 server where the networking will suddenly drop out. I'll try to explain the setup the best I can, I have 2 physical servers:

MGMT - Server 2008 R2 Domain Controller
HVHOST - Hyper-V 2008 Server Core

and 2 virtual (both on HVHOST)

WS01 - SBS 2008 Server
WS02 - Server 2008

All servers are joined to the domain.
The issue is that suddenly both servers no longer respond to any network requests, ie ping, file shares, exchange etc however the HVHOST is accessible. If I load up Hyper-V manager on MGMT server, it can see the HVHOST and that the 2 virtual servers are running. I can then open the servers from here to confirm that they are running.
The only way I've found to fix this issue is to shutdown both virtual servers and restart the HVHOST server (virtual servers automatically startup on boot).
Has anybody come across this issue? I've not patched the Hyper-V 2008 Core server yet.
The only errors I see in the event log on Hyper-V are SideBySide errors and there are no relatable errors on either virtual server.
Thanks
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Flag of United Kingdom of Great Britain and Northern Ireland image

check physical network ports, and speed, duplex settings match the server and physical switch.

check cables, and check counters on physical switches for errrors.
Avatar of keyuk

ASKER

Hi,
Thanks for the response however it isn't a physical cable issue as nothing has changed and works again after a reboot.
Thanks
hoping  type of networking is it external ,

I would do two things:
1.logged monitoring of vms and server core.
2.real time monitoring of the Vms.

this will give why the network packets are getting blocked ,

perfmon
and resource monior

are good ones

thanks
s.deviprasad
ASKER CERTIFIED SOLUTION
Avatar of rigo2013
rigo2013

Link to home
membership
Create a free account to see this answer
Signing up is free and takes 30 seconds. No credit card required.
See answer
Avatar of rigo2013
rigo2013

Hello.

Did you resolve or do you need further help?

Let us know?
Avatar of keyuk

ASKER

I never found a cause for this however it has stopped occurring!