May 12, 2016
Hi Paul
Which version of TMM are you running? The powershell script has a section where you can enable/disable TLS1.2. If the F5 powershell snap-in is not able to negotiate a cipher it will throw an exception that indicates invalid credentials, but this is NOT true. Also, get-credentials will not help you in this case as the user and password variables expects a string. I would also recommend you to run the script as a non-admin use later when you have made everything work as it does not require and special permissions on the server (just access to write the html files to the web root).
Please update this thread if you still have problems.