map network drive errors after opening Excel doc on FTP server

[Guest]

Immediately after opening and closing an EXCEL 2003 spreadsheet via IE on an
FTP server (not an anonymous login) , my workstation begain requesting my
domain, username and password when opening IE, and when opening Outlook. To
make matters worse, it additionally can no longer successfully connect to
existing mapped drives on our local server or remap a drive. When attempted
to map to a network drive, I get the error "An extended error has occurred."

How can I fix this? It seems as my workstation is attempting to use the
logon/pwd that I used for the FTP server for my locally run routine apps and
services.

 

[Guest]

I was able to answer my own question. Apparently, the username/password used
on the FTP site got cached on my machine. I fixed it by going into Control
Panel>User Accounts>username>manage passwords. It had the ftp site's username
and password as the credentials to use when accessing our local server. I
changed it to my domain username and password. Everything works fine now.