> I'll get the proxy address
> fe80::74eb:8181:c5d5:31d%11
This is the IPv6 problem that the latest version supposedly fixed.
For prior versions the fix was to disable IPv6 in windows:
How to disable certain Internet Protocol version 6 (IPv6) components in
Windows Vista, Windows 7 and Windows Server 2008
<http://support.microsoft.com/kb/929852>

How To Disable IPv6 In Windows 7
<http://www.addictivetips.com/windows-tips/how-to-disable-ipv6-in-windows-7/>