HiIm having the same problem i upgraded my Windows XP Pro to Vista ultimate after that all my dial up connections won't work! When i checked the event viewer the connection has been established then suddenly it will disconnect with error code 734 and event id 20227.Can someone help us on this problem?Thanks,Mike

Hi! I've got the same problem and would ask you, if and how did you solved it? I got also event-id 20227, error 31 in RASclient etc., no dial-up possible. Thanks for answer in advance! Greetings Udo