Coecting with SoundCloud never completes

Just installed PSO3 and trying to coect with my SoundCloud account. I've verified that I can sign into my account (on the same PC PSO3 is installed). SoundCloud settings shows Studio One as a registered/coected app, but PSO3 does not complete the Coect with SoundCloud process. The dialog stays open "Waiting for SoundCloud to respond...". Any ideas what I'm doing wrong? I've tried revoking Studio One from SoundCloud. It showed as no longer present, then I try to coect with the same negative result. Studio One shows in SoundCloud as a coected application, but PSO3 does not coect or complete the coection process.

Thanks, from a newbie.