Firefox Connection Reset Error Receiving

Morning gurus,
I need some help here as I you can see the image attached below I am receiving this error message from today morning as I was visiting a site of rolex.com/forum/ when I clicked the forum link I received this message from the explorer.
The connection to the server was reset while the page was loading.
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.
Visiting that site forums is not very necessary but to get the solution to this error message is necessary because its today just first site that is responding me with this error if the explorer repeats the error for other sites too then I will be stuck with this situation for a long time so I thought that lets first find a guru who knows the solution of this problem.
If anyone knows solution of my problem please do contact me via this post.
