I have a network with a sonicwall as the gateway, with all security services (now) disabled. One computer is having trouble getting to facebook.com, while all the rest are fine.
I'm able to ping facebook.com from the problem PC just fine. However, when loading facebook.com (or any of its IPs) in IE8, Chrome, Safari, Firefox, I'm sent to an error page (differs for every browser). I've done a full virus scan with Symantec and Malwarebytes, the PC comes up clean. I've also tried loading up facebook via https, no luck. I'm able to get to facebook on other PCs in the network with no trouble whatsoever, so it doesn't look to be a gateway problem.
Any pointers on this?
Edit/additions: Windows firewall is disabled. I'm able to get to every other website just fine on the problem PC.