Hi Frank,
1. Does it happen with all the programs?
2. Have you made any recent changes on the computer?
3. Which program are you referring as “WP” too?
It sounds like you have installed programs configured to access the
internet and perform an operation, such as check for updates for that
program. The 'server busy' message is appearing because the program is
trying to access the internet before the connection
is completely ready.
To check which program is trying to update using the internet I would suggest that you perform clean boot procedure and check.
To help troubleshoot error messages and other issues, you can start
Windows Vista by using a minimal set of drivers and startup programs.
This kind of startup is known as a "clean boot." A clean boot helps
eliminate software conflicts.
Refer the below link to know more about clean boot procedure.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
http://support.microsoft.com/kb/929135
Reset the computer to start as usual
After you have finished troubleshooting, follow these steps to reset the computer to start as usual:
1. Click Start, type msconfig in the Start Search box, and then press
ENTER.
2. If you are prompted for an administrator password or for confirmation, type your password, or click
Continue.
3. On the General tab, click the Normal Startup option, and then click
OK.
4. When you are prompted to restart the computer, click Restart.
Also check if you get similar error message when opening any windows program like Windows media center.
Hope this helps!