Gmail Login no connection

Hello,

I´ve read now through many posts in this forum which deal with the gmail login problem, but none of them seemed to provide a definitive answer.

I also am trying to login for auto discovery, on my android device(samsung galaxy s2) as well as on my mac companion on my macbbook pro(10.6.7. with up to date companion), but am always getting the answer Login failed, or even the mac companion crashes. I´m using no special extra software, at least i´m not aware of something that could block connections.

I also tried to login on the browser, which works without problems. also i tried to logout then login, also no success. Also i disabled the firewall and added pocketcloud on the whitelist of the mac firewall.

can someone please provide some helpful advice!?! I feel a little bit fooled, as there was of course no mention of this problem(which many seem to have), when I bought the app.

many thanks in advance,
christian