SL logging help, please.

Hi, i have been trying to log with my PC for about six months now, and i just can´t log. I use a MAC to be in SL and it´s no problem. The thing is that before i could always log with the PC, it ussually starts the logging process but it freezes at "conecting to region". I tried changing the region and no can do. I don´´t know if it is because somewhere along the way i had to reboot my D- Link DL-514 rooter, but i have tried everything i know.
I don´t have any problems accesing torrents (Opera), and other online games.
Hope someone can help.
Thanx.
Cheers.

Is your router set to send all packets on an SL required port to the Mac?

I have set it up for gaming, have to check that out, still can log np with the MAC.
Thanx.