Windows 8 lag problem

[GnM]

Hi all!

I started playing altitude and for around a mounth all was going fine.
Then something happened and my ping gone crazy, and i dont use torrent,emule...
Sometimes i dont even got a high ping but i lag like hell, i see planes around me flying around senseless for one second, and then the situation returns normal, but actually it's my plane flying senseless.

One of my friends talked to MagneticDuck and described him the situation...he thinks it is due to package loss.
A friend of mine tried with his pc with my connection and it works fine for him...but at the beginning, i had no trouble too in the game.
I'm from Milan, i use Windows 8 and "connection problem" comes out everytime i play.

Can you help me?

P.s. i dont speak english very well, sorry

[BrandonL]

You could try re-installing Altitude

[GnM]

I'm trying but i forgot to mention that the problem shows up either in alti for windows or steam

[GnM]

i've tried to re-install altitude but still high ping (480) and lag

[Karl]

Since you said your friends PC works it's probably caused by a virus scanner, firewall, or a virus. Can you think of anything you've installed that might affect things?

[GnM]

I've checked and there's no virus or something strange i've installed, firewall...i dont know how to check.
What about Port code in Gameplay options?

[GnM]

i've tried to open UDP port (Gameplay options) on my route, i put Server Name HTTP. i haven't solved the lag problem. Can it be useful? I dont know what to do, guys, help me out