i have 250 plan.....i cannot access http://10.240.43.216 or http://10.240.240.195/ ....... what do i do??????

The connection has timed out

The server at 10.240.240.195 is taking too long to respond.

* 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.