IP address access through IE 6.1

Suddenly I can no longer access my printers or other devices from my (or any) workstation , through my web browser , by using the IP addresses (it just times out). It works fine though if I’m trying the same thing on my 2000 file server (wkstns. are Xp).

I have no idea what would’ve caused this, there were no major network changes lately other than removing the Novell clients from the worksattions, (which the FileServer doesn’t have or had either)