There are hundreds of PUPs claiming to be legitimate and useful.
Rogue apps deliver fake promises to improve the Internet browsing experience by enabling a variety of features.
In this case, modifications prevent users from accessing web pages. Most dubious apps (for example, Wajam, Cloud Scout, DNS Unlocker, Finding Discounts, and Genius Box) infiltrate the system using a deceptive software marketing method called 'bundling' - stealth installation of third party apps with regular software.
Rogue applications are often bundled with free software downloadable on free software download websites.
Select "Advanced' tab, and click "Settings" in the "Network" section.
If you don’t know what Proxy Server is then it is a redirect via an IP to the external site, usually used for anonymous surfing.Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".Click the "gear" icon (at the top right corner of Internet Explorer), select "Internet Options".Select the "Connections" tab, and click on "Lan settings".In the opened window, uncheck the "Use a proxy server for your LAN (These settings will not apply to dial-up or VPN connections)" option: Click the Firefox menu (at the top right corner of the main window), select "Add-ons".'The proxy server is not responding error' is often caused by adware/browser hijacking plug-ins and potentially unwanted programs (PUPs) that are able to modify Internet browser settings.Proxy servers can be used to anonymously access certain web pages or other network services.Proxy servers allow users to change their Internet Protocol (IP) addresses and mask their locations, thereby hiding their true identities.This method is popular amongst users who intend to access websites from which they have been banned, or ones that are blocked in their current location.Select the "Connections" tab and click "LAN Settings".Uncheck the "Use a proxy server for your LAN (These settings will not apply to dial-up or VPN connections)." tick and click "OK".