[Solved] IIS Error: The connection has timed out The server at is taking too long to respond

My application was running well but now is flagging the error below

how can i increase my timeout so that it does not timeout

please help

The connection has timed out

The server at 192.168.1.2 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.