Dude, I just switched from an ARRIS modem to a LINKSYS modem & the same thing happend. Before, I could plug & play my PS3 or PC to the net. But now only the PC, I get DNS 80710102 from the PS3. I called tech support in India, poor lady didn't have a clue, tried to blame my cable. Also, a search shows LINKSYS has a lot of issues w/PS3. Glad I kept my reciept.