Chrome and Firefox can't connect to LabTutor Server - Diffie-Hellman key

With the release of Chrome 45.0.2454.85 m and Firefox 40.0.3 security measures have been introduced that prevent browsing to LabTutor Server admin pages.

Error messages are displayed as follows:

Server has a weak ephemeral Diffie-Hellman public key

Secure Connection Failed
An error occurred during a connection to SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key)

To rectify this issue the following adjustments can be made to LabTutor Server:

1) Navigate to the LabTutor Server installation directory and locate the tomcat configuration folder.  This is usually located here:  C:\Program Files (x86)\ADInstruments\LabTutor Server\tomcat\conf

2) Make a backup copy of the server.xml file

3) Replace the server.xml file with version attached to this case.

4) Restart LabTutor