Random vSphere Client Disconnects

[Jetcopter]

Hello,

I'm experiencing a strange issue where my vSphere client disconnects and then instantly reconnects when managing a stand alone ESXi 5.0 host. After I log into the vSphere client everything works as expected but at what seems like random intervals the main window will lose the connection and then reconnect.  I see a reconnecting window flash quickly and all the tree of resource pools collapse down to the root.

Everything on the host continues running normally, the virtual machiens are not affected.

While troubleshooting I eliminated the network as a cause.  I created an internal virtual network and ran the vSphere client on an internal VM pointing to a secondary internal vmkernel port.  I still observed the random disconnects on the internal only virtual network.

I took a look at the logs but nothing really stood out, although I don't really know what log to look in.  I also updated the host with the latest patches build 515841 to see if that would help but it had no affect.

Any ideas?

Thanks, Steve

[BharatR]

I'm experiencing a strange issue where my vSphere client disconnects and  then instantly reconnects when managing a stand alone ESXi 5.0 host

       Note: This resolution is provided for a vCenter Server installed on a Windows 2008 R2 operating system.

1. On vCenter Server, navigate to Control Panel > Windows firewall > Exceptions.
2. Edit the exception (firewall rule) for VMware vCenter Server-Host Heartbeat and click Properties. VMware vCenter Server- Host Heartbeat Properties window opens.
3. Click Advanced.
4. In the Profiles section, specify the correct profile as domain.
5. Save the rule and re-add the ESX host back to vCenter Server.

[raj196]

Hi there are so many possibilites , please check if any evenit  being generated or not if yes then it is easy to find out solution .

you can check releted service ,firewall, connection mode etc.

_________________
Innovation distinguishes between a leader and a follower.

Yours, Oscar

[Jetcopter]

I did not see anything in the Windows event viewer.  However, I kept a close eye on the esxi host logs when the issue occured and I found this exactly when the issue happened:

From vmkernel.log

2012-01-14T16:26:15.076Z cpu0:2082)NetPort: 1427: disabled port 0x2000014

2012-01-14T16:26:15.076Z cpu0:2082)NetPort: 1427: disabled port 0x100001a

2012-01-14T16:26:15.076Z cpu0:2082)Net: 2195: disconnected client from port 0x2000014

2012-01-14T16:26:15.076Z cpu0:2082)Net: 2195: disconnected client from port 0x100001a

2012-01-14T16:26:15.145Z cpu2:23051)Net: 2173: 0x2000014: can't access port

2012-01-14T16:26:15.145Z cpu2:23051)Net: 2173: 0x100001a: can't access port

Thoughts?

Thanks, Steve

[Jetcopter]

Here is another sample from the log:

2012-01-14T19:10:53.528Z cpu3:2082)NetPort: 1427: disabled port 0x1000021

2012-01-14T19:10:53.528Z cpu3:2082)Net: 2195: disconnected client from port 0x1000021

2012-01-14T19:10:53.569Z cpu2:19779)Net: 2173: 0x1000021: can't access port

[Avolation]

Jetcopter wrote:

I'm experiencing a strange issue where my vSphere client disconnects and then instantly reconnects when managing a stand alone ESXi 5.0 host.

  Hi! I got the same problem, can't handle it. Googled all over, have tried everything. You solved it?