Clearly he stated service pack two. Please read posts before replying to them. I've the same issue and for the last six months have not yet found a working solution.

I have the problem, and i have xp so I don't think it's a vista issue

I had the sqame problem, the day after my 12 year old grandaughter used the puter to play her online games. Pinging worked using IP addys,, and names, but I could not connect with my browser. I wound up disabling the internal wireless card on my Dell [Vostro} and installing a USB wireless adapter. Voila, I connected immediately. I then disabled my USB adapter, enabled the internal one, and its running fine now. Don't ask me why or how, IT WORKED. I didn't look any further. Incidentally, I had compared all settings [via IPCONFIG] with another puter on the same network that worked. For all practical purposes, they were identical.
Maybe this will help someone. For me, it was a stab in the dark that worked.

John

I have the same exact issue, it started for me when one of my wireless systems USB network adapters died. After replacing the adapter the system will not browse via any browser program. It will still receive windows updates, and my anti virus program still updates, I have tried disabling all firewall protection both software and hardware and it still will not browse. From the router I can see where the router issues the ip address and the computer can be pinged. My network has 2 wired computers via D-link gamers lounge and 2 computers are wireless, The wireless ap is a linksys wap54g. Only one of the two wireless computers are having this issue as the other wireless system browses just fine. I am at my witts end on this. I have removed all anti-virus and anti spam,malware,spyware programs from the system as well as disabled all firewall or any programs that have the remote possibility of preventing or blocking the system from browsing. I have also connected it direct to the cable modem via cat 6 cable to see if I can get it to browse. All the system will do when opening a browser is sit there like it is attempting to infinity open a webpage. I tried to get those free trial of that Iolo Anti Virus and personal firewall but their site keeps saying the server is too buys. Which is a common ploy to get frustrated people to just up and buy their product. So if anyone else has a solution to this issue other than complete low level reformat and reinstall please contact me or replay.

Thank you

Looks like your port 80's are dead :/

try a new router, etc. Maybe even trying port 8080 as your browser port.

I finally fixed the problem on my computer. There were remnents of Norton left over after an uninstalll that were throwing everything off. I went to norton's website and got a complete removal program. After I ran it everything went back to normal!!!

I just solved this problem for myself! My problem was in Norton Security/Antivirus which is provided through Rogers and for some dumb reason had made a rule to block the internet. All I did was under the web browsing tab, turn off personal firewall and when I tried my browser again it worked. I switched the firewall back on and it asked me to create a new rule for IE8 and it has been working ever since! Hope this works for you too

Peace

I am having the same problem - internet is connected but I can't browse, also Skype is not working. I had McAfee but it is not working anymore, so, I removed it and tried to scan with NOD 32 but no success. I think it should be some virus problem because my McAfee crashed or maybe - the problem occured because of McAfee crash?

Thanks for all the ideas. I had this computer linked to my router by cable and had local connection, but no Internet connection. I got mine working after only 5 hours or so. I erased all McAfee, deleted Linksys files, used just the Windows XP firewall, then reloaded the Linksys wireless. Who knows what of all that worked, but it's working. I noticed the IP address was different from the router and all other linked computers in the third octet (1 instead of 0), so maybe using the wireless corrected the address problem.

Roslina tnx for your post! I tried changing my home page and it worked! now i can browse, i'll have to do more tests though but as of now my browsers are working fine! Thanks! Guys try changing ur home page too it might work! doesnt hurt to try!

Something is definately up... too many folks experiencing the same problem! I also had or still have the same problem, it is intermittent so I don't know if it's fixed. I am pretty sure that it is fixed because I have been online now for a while. I loaded the link from Microsoft that the fine user recommended earlier... I think that fixed it.
http://www.microsoft.com/...
In my frustration I also uninstalled Office2009 for student, Kaspersky Internet Security 2009, and a few other apps I don't use. My daughter was online playing webkins, don't think that was it. I think it was a router conflict because I even reloaded XP home on a different drive and fell offline a few times.

Crazy thing... I am a veteran net surfer and PC user with my own server, web design company, and hosting service.

God bless the wonderful peeps that take the time to help one-another, I thtink you helped me once again!!!

-Matt