The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My badges

  • Twitter Updates

  • My Flickr Stream

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 1,982 other followers

“Unable to connect to the MKS”: the port 902 problem.

Posted by jpluimers on 2016/05/23

A message like “Unable to connect to the MKS” usually does not mean you have reached the maximum of 10 connections for a VM.

Usually it means there is some network issue, like a firewall or router misconfiguration.

Port 902 is used (both TCP and UDP) to provide (among others, hence MKS) console connections.

The default MKS port is 902, and you cannot change it.

For vCenter it is even worse as you cannot even go through NAT:

About the only solution is to tunnel through SSH: VMWare vSphere Client Remote Access via SSH Tunnel and redirect ports 443, 902 and 903.



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: