Why can't I connect to Lab Management using port forwarding with SSH/Putty?

Check the settings outlined below. This is also applicable to VNC and RDP.

Confirm with your Lab Management domain administrator that your port forwarding rule has been added:

When you establish your remote connection using either SSH, VNC or RDP, you must target the Lab Management box with the number as defined in your port-forwarding rule and as specified by your domain administrator.