This error is very annoying because culprit is IE update.
Regardless of what browser you are using, IE changes the settings for the proxy internally, blocking every browser.
Solution is to go to Internet Options, then to Connections, LAN and then uncheck proxy option there.
One of those issues that underlies why Microsoft was sued for antitrust violations. I almost never use IE (except for testing) and yet, this silent update blocks everything else.
Regardless of what browser you are using, IE changes the settings for the proxy internally, blocking every browser.
Solution is to go to Internet Options, then to Connections, LAN and then uncheck proxy option there.
One of those issues that underlies why Microsoft was sued for antitrust violations. I almost never use IE (except for testing) and yet, this silent update blocks everything else.
