Printer/Wireless Laptop Network Problems

Hello,
I have a wireless laptop cart with 16 Dell computers, using Windows XP, with a NOvell Netware Network. I'm having trouble with connecting the printer. The printer was working(laptops were connecting to the printer), but all of a sudden, none of the laptops were connecting to the printer. Thought it was our router but all of the laptops are getting onto the internet and the network--just not the printer. I printed out the configuration page and noticed that the TCP/IP port address had changed, so I changed that on the laptop, but still no printing occurred. I printed out the configuration sheets and on the Embedded Protocol Page the Novell/Netware Status has a message underneath that says: Not configured, and the IPX/SPX Status says Unable to Sense net number. Not sure if that indicates the problem or not.