The quick fix is to click the REFRESH button on our browser. Sometime, this doesn’t work either.
The next solution would be to go to our browser’s “Tools / Options” tab and clear cache, temporary files and cookies. While you are there, you may want to go to the “advanced” tab and set your browser to clear the history when you exit. Some browsers have an option to “refresh” the page each time you request it.

If none of the above solves the problem, there is one other solution to be sure that the problem is NOT your computer but, perhaps, some “bump” occurring out there on the internet.

FLUSH DNS: This may sound like it requires technical expertise, but it really is rather simple.

Left click START Button then click “RUN” - then type ‘command’ into the box and hit enter. This opens the command line. Now type “ipconfig /flushdns” right after the blinking cursor. ( No quotes and be sure to put in the ’space’.) This will flush all the domain name server requests from cache and allow your browser to make new, fresh url requests.