This seems to have fixed the issue, a security patch from Microsoft: http://support.microsoft.com/kb/951748 If your having this issue, you may want to try the other suggestions in this thread as well... V Origional Post V Got an XP Home SP3 PC that will no longer run internet. It connects to the router just fine, and I can play with settings there all day. There are several other computers in the house both wired and wireless that connect and get internet just fine. This PC used to work, was connected with wifi. I have since drug out a 100 foot cable and strung it across the house to no avail. Ive tried several things but still can't figure it out. Obviously it has to be this PC right? But I have no idea what caused the internet to fail. I unistalled the antivirus and have windows firewall disabled...tried some command line resets and software fixes I copied over USB. Trying the built in fix with internet explorer does nothing, it instantly tells me to contact customer service (instead of the usual reset the router or whatnot). I tried reseting explorer to its defaults, and tried chrome as another browser...no go. So now I gotta ask for help, Ive never been unable to get internet working, especially a wired connection. Might as well start at the begining...what do I need to do or try? I thought about trying to do a repair install of XP, but for the life of me I can't find an XP Home disk. I have the CD Key...and an XP Pro disk, but no home disc. Actually if I did have the disk it would be SP1 I'm sure, so is there somewhere I can get an XP Home SP3 ISO or something? I tried browsing microsoft but I don't think I found it. Im not looking for an illegal or cracked copy, I definately have the key (confirmed it by pulling the key from registry). Would a repair install even work? Or maybe just reinstalling the service pack itself (can I get that online, to a USB stick?) Theres about a terabyte of important programs (seriously) on this thing, so even if it had backups of the files I really don't want to spend a month reinstalling, rebuilding, and updating everything. Thanks in advance.