Hi Panzer,

Guess you're correct when you're saying you're complex's operator is probably blocking p2p ports...
I have the very same situation. I got a cable connection using PPPoE - I have to connect via a dialer software - and that seems to be the problem.

For a few hours some days back, my PC created a strange new connection that would connect my computer to the internet automatically -WITHOUT me having to login. When this happened, LW would connect at full speeds. When I tried loging in through the dialer, LW was unable to connect. I logged off and tried using the connection my PC had created. And LW instantly connected again - at full speed.

I hadn't even changed the ISP. It was the same ISP. Only once without their provided dialer. So it had to be the dialer software itself. Either that - or that connection which my PC automatically created was able to bypass all the ISP networks and firewalls and directly connect to the internet.

I'm sad cause - as mysteriously as the connection was created, it also vanished. LW will not conncet as long as I am using the dialer software and a login process to connnect to the internet.

Panzer, your PC settings are absolutely normal and I therefore say better not tamper with the PC/network settings.

I guess your only solution is to connect to the internet through some other ISP.

Regards, AG.

P.S. If anyone has any idea how my PC created this new network connection (classified as Internet Gateway) the please let us know.