Access

I’ve tried every nmap scan possible and all I get is filtered ports. Yes, I’m new to this and I don’t care if you flame. Just here to learn. I know how nmap works, I know basic networking, I’m just not sure how to gain access and view possible open ports/services running if everything is coming back as filtered. I’ve read the comments and know which ports should be open but they’re all filtered for me and I can’t make a connection. Advice would be greatly appreciated. Reply in PM or here please.