My system is already connected to office's lan. However some other system are not connected to this LAN. Now my job is to connect all these computer in small office LAN without getting permission from the admin. of already present LAN. Platforms are different, Vista and xp. My system is xp. I am very much confused. sometime it gets connected. I see other computer from mine.But vista never discover any system. It shows unidentified network.Once I shared my printer with other xp but on the next it again showed message that u dont have permission or network path not find.I am using 8-port switch to connect all these system. Please help me. Its is question of my job