Hello, my friends. I some time ago bought new laptop and reinstalled my OS, and i have some problems that i wanted to fix, but i have no idea. I used ubuntu, but i've set up windows 7 and my opinion is that that there are some problems with firewall. I can't use apache channel because it's often not working and a lot of ports are not visible to other clients from the internet. May be, it is an issue with modem, but I don't know for 100%. What do you think?