Edit: I said 'outgoing connections' in the original question title, but apparently the correct term is 'incoming connections'. I meant: "How can I share my node's blockchain so that others can update theirs?" Currently I have 8+0 connections. I found some tips about router settings and I will post an answer when I get it to work.
I want to contribute to the network and I read that I should open port 18081 in order to enable outgoing connections. How do I do this? I don't know how to change the router settings. The router is a box that my ISP installed. I tried to add a rule in Windows Firewall, but that didn't work.
I have no network problems when it comes to minting PoS coins or even mining low-difficulty coins.