First, test your password by logging in to your provider's webmail.
If that works, it proves you have the correct username and password.
A likely reason for the username/password failing is account corruption.
One thing you should try as a possible quick fix is to delete that corrupted
mail account, restart Windows Mail, then recreate that account.
If that doesn't fix it, more drastic measures will have to be taken.
Which antivirus are you running?
As a minimum, email scanning in the antivirus must be turned off,
although that may not be sufficient to eliminate all bad effects.
In a worst case scenario, your antivirus may need to be uninstalled.
If turning off the email scanning function does not resolve your problem,
consider upgrading to Windows Live Mail, because it is less prone to
suffering bad effects from overly aggressive antivirus programs.
http://download.live.com/wlmail
Email scanning in any antivirus must be disabled, for reasons
explained here:
http://thundercloud.net/infoave/tuto...ning/index.htm
--
Gary VanderMolen, Microsoft MVP (Mail)
http://mvp.support.microsoft.com/def...le/vandermolen
"coastbuster" <> wrote in message news:9A05CBF2-F9DC-4185-BED6-...
> i'm in the same position.Unable to send or receive messages for the
> account. An incorrect password was entered.
> The next time you send or receive messages, you'll be asked to enter your
> user name and password for this account.
>
> Server Error: 0x800CCC90
> Server Response: -ERR [AUTH] invalid user/password (error 999)
> Server: 'mail.btinternet.com'
> Windows Live Mail Error ID: 0x800CCC92
> Protocol: POP3
> Port: 110
> Secure(SSL): No
>
> please help me. I have included the info as you wished. Barbara
>
>
>
> "Gary VanderMolen" wrote:
>
>> Right-click on your error message, copy, then paste it into a reply here.
>> We can't do much troubleshooting without the complete error message.
>>
>> Incidentally, your Caps Lock key appears to be stuck.
>> That may prevent a proper login, as well as being perceived negatively
>> by the readers here.
>>
>> --
>> Gary VanderMolen, Microsoft MVP (Mail)
>> http://mvp.support.microsoft.com/def...le/vandermolen
>>
>>
>> "Doris" <> wrote in message news
53B54B6-810A-4BA1-85C0-...
>> > HELP!
>> >
>> > I HAVE NOT BEEN ABLE TO USE WINDOWS MAIL FOR THE LAST TWO DAYS. WHEN I TRY
>> > TO SEND OR RECEIVE MAIL, I GET A MESSAGE TO VERIFY MY e-mail ADDRESS AND
>> > PASSWORD. AFTER ENTERING THIS INFORMATION, I STILL AM NOT GETTING ONTO
>> > WINDOWS MAIL. I GET AN ERROR MESSAGE THAT SAYS I HAVE A SERVER ERROR NO.
>> > 0x800CCC90 and A ERROR NO. 0x800CCC18. I HAVE DISABLED MY e-mail SCANNER IN
>> > MY VIRUS PROGRAM (AVG free) AND THE PROBLEM STILL OCCURS. CAN ANYONE HELP ME?
>> >
>> > Doris
>> .
>>