Hey, you guys, I've solved it!
I decided to boot up to try some changes more and found out what was going on:
As I have 56k connection, I use this program called NetLimiter (google it
) where I can see whatever is sucking my connection and limit or block any application's bandwidth. So, very useful for whoever has dial up connection. It's like a sort of firewall.
So, yesterday I realized svchost.exe was sucking my connection and just added rules to block its bandwidth. That's what caused all this. I deleted the rules and it's working again!
Thank you very much, guys!