unable to start audio conference (connect to PGi), after update to 11.2

I am unable to start audio conference for my Adobe Connect classrooms this morning.  We use PGi for our telephony, and usually have no problem connecting the audio bridge.  I get an error stating that it is unable to connect to audio conference, and offers the option to cancel and retry.  Help pages have nothing to address this.  I tried disassociating the number on the backend, waiting for more than 15 minutes and reassociating the audio.  Did not work.