Need help with browsers

I need help with my browsers. The only browser that works is firefox. Safari, googlechrome, IE don't work at all. I also get a message that says Network Error (tcp_error)


A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

Hello,

Please start Internet Explorer, and when the program is open, click on the Tools menu and then select Internet Options.

• Now click on the Connections tab and then the Lan Settings button
  
• Under the Proxy Server section, please uncheck the checkbox labeled Use a proxy server for your LAN.
  
• Click the OK button to close this screen. Then press the Apply button and then the OK button to close the Internet Options screen. Now that you have disabled the proxy server you will be able to browse the web again with Internet Explorer.

ROFL I had a vpn on them for some reason thank you.

Thanks for letting me know.