"No proxies here"
Seems like you have a proxy enabled. The new security page will not permit anyone with a proxy enabled to connect to the server, you must disable it in your internet settings in order to connect.
Go to:
> Control Panel (start menu - Control Panel)
> Network & Internet
> Internet Options
> Connections
> LAN Settings
> Uncheck "Use a proxy server for your LAN" (If it's checked)
If this isn't the case, try using another browser to connect.
~ Whisper