We're having a similar issue under what sounds like the same conditions. I've checked the inbound firewall rules and I see exceptions for pocketcloudinstallwizard, pocketcloudservice, and wyes browser so I'm stumped. Same symptom, red X next to firewall setting when the wizard is run and the iPad simply can't discover the PC. Have it running on my home computer but just not working on the machines in the office.
One point, in the outbound rules it looks like remote assistance "Public" is disabled ... this might be the problem.