Problem with OC, help

[BrianVox]

Hi to all!. I recently bought new computer and installed windows, and i have many issues that i wanted to fix, but i don't know how. I used ubuntu, but i've installed win7 and my opinion is that that there are some problems with brandmauer. I can't use apache channel because it's also not working and many ports are not visible to other computers from the network. May be, it is a problem with modem, but I'm not sure. What do you think?