Connected fine to office network but unable to get internet access.
Found out that I had used last week password and it was changed on weekly basis.
Now it appears that you cannot edit or delete N800 connection manager via tools whilst N800 is connected to that particular network.
So in order to update password you would have to get far enough away from network to drop connection in order to delete or edit thus allowing you to connect to network.
Ok it reads somewhat daft but try it