DPWAP0011E The administration command, listremote, failed Could not connect to the server.

You get this after you create a reverse proxy instance when you attempt to manage the junctions.

It seems to be caused by your appliance's configured host name being different than the one configured in the RP. You can delete the RP and recreate. Failing that, make sure the names are resolvable via DNS and edit the appliance host files ON ALL MACHINES and the POLICY server so that they can talk.