I have the Creative Cloud Desktop app installed; just can't do updates. Once the update locks up (usually at 35%), I am unable to use any of my previously-synced Typekit fonts, even though I'm logged in and have the CC desktop app running. Very frustrating to go through this every day.
CCAM55, I would recommend that you encourage your I.T. department to schedule an expert support session. They are included with the Team membership and will allow the network restrictions to be resolved on the work network. If you are in a restricted network environment then you may continue to experience errors with any network-related features of the Creative Cloud for Team membership.
There are additional solutions for Creative Cloud for Team members, that your I.T. department is not currently using otherwise you would not encounter Error 201.
I am sorry that you are facing these errors, CCAM55 but I do not believe you will be able to resolve them yourself. Please reference Creative Cloud for teams when contacting your I.T. department so they can schedule an expert session.