I Have two windows XP computers 1 is hard wired to the router/modem, the 2nd one is wireless. Have a windows Vista wireless, all three can connect to the internet. I am new to networking and have setup a network and workgroup. The two XP computer have no problem with printer or file sharing. On the vista computer I can see the other computers, but can not access them. on the XP computer I can see the vista but can not access it. On the XP computer I can click on the Vista computer and I am told that I am not authorized. On the Vista computer I can not even click on the XP computers. Need Help have been working on this for days.