Unable to connect to server

[Rob Monroe]

Day before yesterday I suddenly was unable to send or receive mail.
Running Windows XP
I get mail through Outlook
DSL Line connected through LAN
I spent the last hour working my way through with a Yahoo operator. I
connect to the internet. All my settings in Outlook are correct. They are
not inadvertantly changed by Norton Antivirus. I am able to send and
receive mail through the Yahoo servers on their website. But I continually
get "Unable to connect to the server. etc." whenever I press send/receive in
Outlook.
As far as I know, beyond the usuall weekly windows updates, I have installed
no new software or hardware over the last week.

Rob Monroe

 

[neo [mvp outlook]]

Do you have the same problem using Outlook Express? If the answer is no to
the above, have you tried creating a new Outlook mail profile via the mail
applet in the Control Panel (don't copy the existing one)? If the answer is
yes, are you behind a Linksys router that lets you share a single IP address
with multiple computers? If the answer is yes, have you tried lowering your
MTU on Windows XP so that it comes in under ethernet (or PPOE) standards?