Hey,

When i try to install applications from application manager, it can't download the files because the ports on my wi-fi connection are blocked. I need to know what port it needs so I can unblock it.

Thanks for your help,

Port 80, the same as web browsing

edit:
I don't know if apt on the device handles method ftp:
deb ftp:// .... in /etc/apt/source.list.d/*

If you have ftp repositories, you'll need to either find the same with http OR enable ftp access (can be a pain)