Problem solved.  Looked at the diagnostics and noticed problems involving "taxeducation.intuit.com".  Eventually I realized that I was using this link to login into to Proconnect:

https://taxeducation.intuit.com/app/protax/sign-in

Which worked fine for everything else I needed to do in Proconnect.

Changed my webiste login link to:

https://ito.intuit.com/app/protax/sign-in

and my e-signature problem disappeared.  Hope this will help someone else!