Operating system is XP. Using Lynkseys wireless router for last six months with no problems. Has desktop PC plus two laptops which all use this to connect to internet. ISP is AOL. Last week could not connect to internet, router lost all information programmed into it. Has reinstalled original BT modem to try and connect just PC. He has lost all previous information used to connect to AOL. AOL has searched for connection, found DSL, asked him to give it a name. When he presses next it shuts down his computer!!!!! Help!