Basically MS decided to limit the number of consecutive connections to limit the propagation of worms...a half assed way to do it if you ask me. They could have just had better security in the first place. Anyway, they limit those connections to 10! This was in an XP update, not sure which one.

Here's a link to some info on it and the link to the file is on there too somewhere.

http://trustyfiles.com/help-sw-xpsp2.php