Work network, main computer, running XP, all other work computers connect to a second (not boot) drive. All work info is contained on this drive. Wireless router, Win7 computers cannot connect wirelessly, but older Win7 computer can connect hard wired. We ran out of ports on the router, so I added a hub. Newer Win7 computer cannot connect to main computer hard wired, older Win7 laptop can. Newer computer cannot "see" main computer.
What am I missing?
What am I missing?