I just replaced my Mom's old computer with a slightly newer used computer. It has XP pro. Will not connect to her ATT Motorola NVG510 Motorola router. Called ATT and they checked everything on their end and said it was all working properly. He said he would not be able to help me troubleshoot the computer because it had the un supported XP. My mother is 86 and cannot pay someone to come look at it on her limited income as he suggested. The old computer worked fine with the router until the computer crashed. I was able to connect to her internet with my phone, so the network seems to be working fine. Gives a message of "limited or no connectivity". The computer seems to recognize the router though. The connection says "Intel ® PRO/1000 PM Network Connection." Is there anything I can check within her computer to see if everything is set up to connect? I checked the computer at my home before taking it to her and it connected on my Verizon wireless "Jet Pack" with no trouble. Any help would be appreciated. I am not too computer saavy so you may have to "detail" things a bit for me. Thank you in advance