Issue with OC, help

[Brianbon]

 Hello guys!. I recently changed my computer and installed operating system, and i have some issues that i wanted to resolve, but i don't know how. I used mac os, but i've set up  windows 7 and my opinion is that that there are some issues with firewall. I can't use apache port because it's often not working and a lot of ports are not visible to other clients from the network. May be, it is a problem with router, but I don't know for 100%. What do you think?