I have a windows 7 pc and a windows xp pc. I am trying to connect the two through a workgroup using a wireless router.The windows 7 pc can find and connect to the xp pc. However the xp pc gives error message "workgroup is not accessible"The windows 7 pc can ping the xp pc, but the xp pc cannot ping the windows 7 pc.I have done loopback on the xp pc and the network card is working.Both pc's are connected to the internet through the same wireless router.Any help would be appreciated.1 person got this answerI do too