Split from this thread.

After  spending hours and trying everything I could think of, I solved the problems. I believe that it should help in any OS.

I have W7pro, IE9 and WLM 2011.

The error message was: "an incorrect password was entered" with server error: 0x800CCC90 and WLM error:0x800CCC92. It wasn't true. There are several forums with the same problem and the same error messages.

I changed passwords and could log in from "Webmail" with no problem. I had no problem using WLM with other email accounts (Shaw).

SOLUTION

When opening a new email account in WLM, you have to fill in information in shown windows. The first one is "email address" ... .  When you come to the next page, there is "log on user name" window. The program (WLM) already filled it in from the entered email ("john" taken from the email address). You have to change it to fill in full email address ... as the "log on user name". Then it works with no error messages.

WLM error  "an incorrect password was entered" is missleading. It's not an error with a password.It's the error in WLM program, taking only the front part of the email address as a default for the user name.

how do you fix it once your email is already initiated... this just started happening a few months ago, otherwise, its been working fine.