diff --git a/docs/en/FAQ/How-to-check-for-CGNAT.md b/docs/en/FAQ/How-to-check-for-CGNAT.md index 8b137891..ba8d7f1e 100644 --- a/docs/en/FAQ/How-to-check-for-CGNAT.md +++ b/docs/en/FAQ/How-to-check-for-CGNAT.md @@ -1 +1,29 @@ +How to check for CGNAT? +## Issue +All Firewall and Port forwarding rules are 100% correct, yet nobody can join your home-hosted Server! + +If you have connection problems and you are using a Hosting-Service, contact them for assistance. If you want to use a VPS, take a look at this +[list of Partnered hosting services](https://docs.beammp.com/server/create-a-server/#_1:~:text=our%20partnered%20Services!-,Paid%20Services%3A,-Horizon%20Hosting) + +# How to check for CGNAT? + +## Method 1: +Open a cmd, run ``tracert -4 beammp.com``. This will output a series of network hops. Wait for the operation to finish (may take up to 30 hops). Check the first few IP addresses after the IP of your Router/Modem/Gateway. +If multiple IP addresses within the range of 100.64.x.x-100.127.x.x appear after the Gateway/Modem/Router IP (top IP), you are most likely behind a CGNAT. + +If multiple IP addresses within the range of ``100.64.x.x``-``100.127.x.x`` or ``10.xx.xx.xx`` appear after the first hop, you are most likely behind a CGNAT. +The first hop is your Router/Modem/Gateway and differs between Devices. + +## Method 2: +Find out the WAN IP on your routers interface. Compare it to the IP posted on e.g. https://whatsmyip.org . If they are NOT the same, you are behind a CGNAT. + +## Method 3/Solution: +Call your Internet Service Provider for assistance. +Depending on your ISP, they might not offer dedicated *dynamic* IP adresses (a static IP is not necessary). + +Example of a non-CGNAT Network: + +![image](https://github.com/user-attachments/assets/fee21a50-cbb0-4322-9c26-d9f04f88ae37) + +Tags: Server, 10060 10061, CGNAT, Connection Failed, Port Forward, Firewall