Change troubleshoot order

1 files changed, 27 insertions, 19 deletions

diff --git a/docs/hosting-a-server-with-northstar/dedicated-server/troubleshoot.md b/docs/hosting-a-server-with-northstar/dedicated-server/troubleshoot.md
index c53f567..79f3a35 100644
--- a/docs/hosting-a-server-with-northstar/dedicated-server/troubleshoot.md
+++ b/docs/hosting-a-server-with-northstar/dedicated-server/troubleshoot.md
@@ -4,9 +4,17 @@
 The masterserver needs to request your gameserver for it to be authentified and registered.
 This error means that masterserver can't access your server's tcp port.
 
-It can come from many reasons, but you can narrow them down using [Port scanning tools](#check-if-a-tcp-port-is-open).
+It can come from many reasons, but you can narrow them down by checking if your server is reacheable from the outside.
 
-## If a scan on your external IP is successfull
+## Check if server is reachable
+
+One can check if the server is reachable using their browser.
+
+example : `http://{server_ip}:{server_tcp_port}/verify` should answer you `I am a northstar server!`
+
+Your server **must** be running while you check if the port is open.
+
+## If server is reacheable using external IP 
 
 #### Your GameServer is out of date
 
@@ -24,15 +32,15 @@ Your gameserver is configured to listen to a given TCP port.
 
 Masterserver needs to be able to contact your gameserver though that same port.
 
-#### Another program is using the port
+#### Another Northstar Server is using the port
 
-Sometimes another program listens to the same tcp port as Northstar.
+Shutdown every other server to narrow down the problem
 
-You can check if that's the case by running `netstat -a -b` using CMD as admin
+This won't generally help but will allow you to avoid checking for the wrong server.
 
-As two programs cannot listen to the same port and IP at the same time, changing the TCP listen port can sometimes solve the problem.
+## If server is not reacheable using external IP 
 
-## If a scan on your external IP isn't successfull
+Check if your server is reacheable from your internal network's IP (often starts with `192.168.x.x`)
 
 #### Firewall is blocking tcp ports
 
@@ -40,7 +48,9 @@ In some cases your Firewall or antivirus can prevent your ports to be exposed to
 To fix this issue, make a rule to allow your server to listen on your network.
 Disabling the firewall and antivirus can also work, even if it's not reccomended.
 
-#### Router NAT configuration is incorrect
+## If server is not reacheable using external IP but reacheable using internal IP
+
+#### Router configuration is incorrect
 
 If your port can be accessed from your local IP but not from your public IP, then it's very likely that your NAT rules aren't properly configured.
 
@@ -48,21 +58,19 @@ If your port can be accessed from your local IP but not from your public IP, the
 
 See [CGNAT](https://r2northstar.gitbook.io/r2northstar-wiki/hosting-a-server-with-northstar/prerequisites#cgnat)
 
-## Check if a tcp port is open
 
-To check if a tcp port is open, you can use online services like [canyouseeme](https://www.canyouseeme.org/) or use a command line tool.
+## If server is not reacheable using external IP nor using internal IP
 
-On Windows using Powershell the following command can detect if a port is accessible. 
+Try checking your loopback network interface `http://127.0.0.1:{server_tcp_port}/verify`
+
+#### Another program is using the port
 
-`Test-NetConnection -ComputerName IP -Port PORT` 
+Sometimes another program listens to the same tcp port as Northstar.
 
-If powershell isn't an option for you, multiple CLI and GUI tools are available to download.
+You can check if that's the case by running `netstat -a -b` using CMD as admin
 
-Here are some examples :
-- (CLI)[nmap](https://nmap.org/download.html)
-- (GUI)[PortQryUI](https://docs.microsoft.com/fr-FR/troubleshoot/windows-server/networking/portqry-command-line-port-scanner-v2)
+As two programs cannot listen to the same port and IP at the same time, changing the TCP listen port can sometimes solve the problem.
 
-Alternatively, one can check if the server's port is open using their browser.
-(example : `http://127.0.0.1:8081/verify`) should answer you `I am a northstar server!`
+#### Server is using the wrong port 
 
-Your server **must** be running while you check if the port is open.
+You can use `netstat -a -b` using CMD as admin to check which process listens on which port