I have a Dell Optiplex 745 tower running Windows XP Pro w/SP3. The computer is part of a workgroup and there is no server within the network. The problem I'm having is my network printers disappear when I reboot the machine. These printers are three different MFG's. I've installed the printers by using the MFG software installation package and using the "add printer" within control panel using the TCP/IP Port. Once I reboot the printer shows as offline. I have to delete the printer and recreate. All is well until a reboot. This is a freshly loaded machine with no crapware, viruses, spyware/adware, and or malicious software. Thanks in advance.