If you are running a minecraft server behind your router then you need to setup a port forward in order to allow your friends to connect.
Setting up a Minecraft server
How to Port Forward a Minecraft Server - Step-by-Step
How to Portforward Minecraft (with Pictures) - wikiHow
How to Port Forward - General Guide to Multiple Router Brands | Support | No-IP Knowledge Base
How To Port Forward A Minecraft Server - YouTube
How to Portforward Minecraft (with Pictures) - wikiHow
Trouble Portforwarding a Minecraft Server on an ASUS RT-AC66U Router | Tom's Hardware Forum
How to Port Forward a Minecraft Server - Step-by-Step
How to Portforward Minecraft (with Pictures) - wikiHow
How to Host and Configure a Minecraft Server with No-IP
How to: Port forward your Minecraft server (ANY VERSION) | Working - YouTube
The Beginner's Guide to Port Forwarding
How to port forward a Minecraft server
How To Port Forward: Port Forwarding Tutorial With Example
How to port forward server in Minecraft 1.19 update
How to Port Forward a Minecraft Server - Step-by-Step
How to Fix Minecraft Port Forwarding Not Working?
How to Port Forward a Minecraft Server - Step-by-Step
How to Portforward Minecraft (with Pictures) - wikiHow
How to Portforward Minecraft (with Pictures) - wikiHow
