Proxy setting issue

My parents have a problem with their internet connection. They can visit a few sites, but usually when they try to go somewhere a message will pop up saying "The connection was refused when attempting to contact the proxy server you have configured. Please check your proxy settings and try again."

 

Take it your using IE with a recent version of windows?

Access internet options in the control panel.
At the top of menu choose 'connections'
You should have a box showing your internet connection, click 'settings on the right.
in next window half way down see box which says something along the lines of always use proxy server, take tick out of that box if ticked.

May work for you, i'm no expert!!!!!!!!!