I installed W7 Home Premium on my bro's desktop pc (HP Pavilion a6600f)and it went online no problem on my internet, but when I brought it to his place, it wont connect to internet. I spent hours on phone trying things with Charter to get it to go online and it wont. The Charter internet techs have been to his house 3 times and the same results as I:The techs laptops and my laptop will go online using Ethernet no problem with same W7 OS. He doesn't have router, just internet modem, so no wifi. I have no idea what would cause this.I even did another fresh install of OS and had his Ethernet cable plugged and it didn't read it. Is his built in LAN going? Or that part of mobo? Do you think a LAN card would solve this problem?