I am having trouble accessing select websites (apple.com, usps.com, timewarnercable.com, vivalavinyl.org, amongst others). I tried with Safari, Firefox, Opera, IE, but to no avail. I used to be able to access these sites with no problem, and I am truely baffled as to why I can't get to them all of a sudden. Weird thing is that I have no problems accessing other sites. I don't really know where to start. Please help!
HERE'S THE ERROR MESSAGE I GET IN FIREFOX:
Unable to connect
Firefox can't establish a connection to the server at www.apple.com.
* The site could be temporarily unavailable or too busy. Try again in a few
moments.
* If you are unable to load any pages, check your computer's network
connection.
* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.
HERE'S THE ERROR MESSAGE I GET IN FIREFOX:
Unable to connect
Firefox can't establish a connection to the server at www.apple.com.
* The site could be temporarily unavailable or too busy. Try again in a few
moments.
* If you are unable to load any pages, check your computer's network
connection.
* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.