We're in the process of setting up mobile activesync on our office smartphones (Orange SPV C500's + C600's). The ActiveSync settings on the phones are all set-up - including username, password, domain and server address (ip address of our exchange server). The problem is however whenever we try to do a manual sync via the phone, it connects but then stops and gives the following error:- "ACCESS WAS DENIED. CHECK YOUR SERVER USERNAME AND PASSWORD IN ACTIVESYNC OPTIONS" "ERROR CODE: HTTP_401" We've obviously checked the username and passwords - the same problem happens for each user. SSL is enabled on our exchange server (we use outlook web access). We have run the disablecertchk utility on each of the phones. Additionally, we have tested outlook mobile access on the phones via their internet explorer - this works fine. Any ideas greatly appreciated!