Well this problem can be sorted out by following these steps
1. Open Outlook Express
Click on Tools Menu at the top - Click on accounts - Click On the mail tab . Higlight your Account name and click on properties.
On the Properties box Click on the "Connection" tab at the Top
On this Box there is a Small check Box which says conenct using - check this Box and select LAN (Local area Network).
In addition to that it would also be a good idea to delete any dial up connections
To do that Open Internet Explorer
Click Tools - Internet Options - Click on the connections Tab -
Inside the Dial up and Virtual Private Network Settings Box Delete any connection that you find.
after that you need to select Never Dial a connection below that-
Then Click on Lan Settings on the Bottom right and Select - Automatically detect settings
Apply these Settings and Click Ok.
2. If that does Not Help Delete Your Account from Outlook express and Reconfigure it
3. Even if Reconfiguring does not help then you might have to create a Fake Dial Up Connection And then Delete it to make OE lose track of the Dial up connection altogether.
4. Otherwise Use RegEdit to modify password settings for Outlook Express.