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Ben ConnerFlag for United States of America

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Console stopped working for VM in vSphere client

Hi,

I have been accessing a VM on a host via the vSphere console with no issues and a few minutes ago started getting the following error when I tried to bring it up:

Unable to connect to the MKS: Login (username/password) incorrect.

I googled this and the references really didn't apply to this situation.  This is on Esxi 5.5.0 and the host VM OS is W2008 R2.  After rebooting the VM I am able to get in to it via the Remote Desktop Connection client.

?

--Ben
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Ben Conner
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ASKER

I use IP addresses to access the host in this case (10.0. range).  No, no DNS changes have been made.  It was working 2 hours ago and now is not.

The VM version is vmx-09.

--Ben
Oh..  other VMs on that host I can access in the console tab with no issues.

--Ben
Avatar of Jlucht
Jlucht

Have you tried to access the vm via the web portal and the vSphere Client?
is this the solution you found?

Open /etc/vmware/config with a text editor.
Add this: vmauthd.server.alwaysProxy = “TRUE”

Check your firewall config/network setup. This error is caused by your vSphere client not able to communicate with the ESX/ESXi host directly.

All “Unable to connect to the MKS:” errors are network issues. Do not be fooled by the mention of certificate issues…
Haven't tried the web interface.  Trying that now.

I'm puzzled that it would work with one VM on the same host/switch and not this one, and this one was working about an hour ago.

Will let you know how the web ui goes.

--Ben
I would also check the firewall settings on the Win2k8 Server.
It's disabled.

Interesting.  The web UI can see the machine.

--Ben
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
this can happen if you have many console sessions open.

can you repeat the issue ?
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Ben Conner
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No problem, Please be sure to mark this question solved!
Stumbled across the answer while I was working with others.  It may help someone else in the future.

--Ben