If you have the ASCOM Platform 5.5 update installed, on the Chooser you'll see a Trace menu in the upper lect. It should be relatively clear how to use the options there. Help is available in the Windows Start Menu, ASCOM Platform, Docs, ASCOM Platform 5.5 Help, Tools and Features, Serial Tracing.

Turn on Serial tracing. Look at the resulting log to see if anything is coming from the scope.

I'll make an initial guess: a possible cable issue.

If you

I have problems with the tracing facility itself, please post posted a separate questionhere so we can answer that and help others asking for clarification on the tracing options.

If you have the ASCOM Platform 5.5 update installed, on the Chooser you'll see a Trace menu in the upper lect. It should be relatively clear how to use the options there. Turn on Serial tracing. Look at the resulting log to see if anything is coming from the scope.

I'll make an initial guess: a possible cable issue.

If you have problems with the tracing facility itself, please post a separate question here so we can answer that and help others.