Hello all, I just bought a used acer aspire 5734z-4725 laptop with Windows 7 off of craigslist. Everything works fine except when I try to connect to the internet. It brings up error code 651. my internet is a dsl connection from centurylink that is 1.5Mb. I have their basic router hooked straight to the laptop. I know it isn't the modem because I can hook it up to my ps3 and I can play online all day and night without a problem. before my old laptop got fried it worked on it. I've come to the conclusion that it has to be the computer. This is my first experience with windows 7 and I like it but I can't do much without internet. I have searched the internet and have found many different suggestions on how to fix it. I figured I would ask all of you for suggestions and instructions or at least point me in the right direction. Any help would be great.