XP slow to shutdown after a router change

[videobruce]

Running XP pro w/sp3, after a changed my router one of my three active partitions (3 HDD's) the one I use all the time is slow to shutdown.

I changed out a old Verizon DSL route for a Linksys wireless router (using the wired connection) and by doing so the system is slow to shutdown. I remember reading something about network conflicts connected to the O/S, but don't remember the terms which makes searching impossible.

I use static IP addresses for my three PC's and two TiVo DVR's which are on the network. No firewalls. This happened right after I swapped routers.

[Tripredacus]

Not even the firewall built into Windows? What happens to the shutdown time if you have that enabled?