The remote server rejected the login credentials: Passthru Disabled

OS Name/Version:
Controller: aarch64 (Raspberry Pi 4B) 2.6.0.6
Target: Debian Linux 12 (Desktop pc) 2.6.0.12
Product Name/Version: (Always use the full version number - not ‘Latest’)
advanced, versions 2.6.06 (Target) and 2.6.0.12 (Controller)

Problem Description:

I think I’m down bad right now. Everything worked, I touched it and now nothing works. My base problem right now is that I can’t connect the Controller with the Target. (Or reconnect, better said). I do have all necessary ports open, and the Controller also tries to connect to the Target:

[08:07:00] [System Activity/29]   : Authentication token for AMP_SYSTEM requested by UpdateRemoteInstancesList on behalf of INTERNAL
[08:07:00] [System Info/26]       : Failed to update Server-LN-1 - The remote server rejected the login credentials: Passthru Disabled

This was on the Controller (Raspberry Pi)
The Target is showing:

[08:07:00] [System Activity/20]   : Authentication attempt for user AMP_SYSTEM from 192.168.2.1
[08:07:00] [System Activity/20]   : Authentication failure for user AMP_SYSTEM from 192.168.2.1 - PassthruDisabled

I do not know if this is the issue, but maybe the User AMP_SYSTEM isn’t configured or something similar. The login information I use to manage the Web interface of the Raspberry Pi (controller) is User: joelsimon08
Maybe this helps a bit.

I also have to mention that my setup is very special:
I have the Raspberry Pi connected to my router, which is normal. The special thing now is, that I use the Raspberry Pi as a gateway for my Target (Gameserver).
On a connection, data goes to my router, then to the pi, then to the Gameserver and back the same way.
This is due to a script watching if anyone tries to connect to the Gameserver and starting it, in case someone tries to join (To save electricity). This also worked perfectly before I touched something, I don’t even know of, destroying the whole setup.
For testing purposes, I deactivated the script and am now trying to repair AMP first.

It either is pretty easy to resolve, and I’m just stupid, or it is a bigger thing.
Additionally, I also can’t connect to the gameservers hosted on the Target. I don’t understand why tho, because when watching incoming and outgoing traffic via tcpdump, it seems like the gameserver gets the requests and sends an answer back immediately, so theoretically it should work.

Steps to reproduce:

I have no clue what I have done and am currently having a mental breakdown

Actions taken to resolve so far:
I searched up every similar problem of other people online, but nothing worked.
I also tried to ask ChatGPT, but he doesn’t even get the repositories right, so I quickly left again.

I know that my explanation is kinda special. This is also due tho my lack of understanding in programming (I just started like a couple of months ago).
I do understand that I maybe didn’t explain my issue that good, but I am currently having the biggest struggles I’ve ever had. If you need more Information, I’m happy to help fix my problem.

EDIT:

i now tried to connect to the Webinterface of the gameserver by routing

ssh -L 8080:192.168.2.2:8080 joelsimon08@192.168.1.136

and then connected to the webinterface by using

localhost:8080

This means, i’m now connected to the webinterface of the gameserver. It gives me directly following error:


Hopefully this helps

EDIT:

In this post: Controller / Target Configuration Issue · Issue #62 · CubeCoders/AMP · GitHub
It’s mentioned that Security.EnablePassthruAuth=true should be =false on the Target, which it is. I also saw unter the section login Login.UseAuthServer=true
i put it on =false for testing purposes and it seems like the error changed now:

Authentication token for AMP_SYSTEM requested by UpdateRemoteInstancesList on behalf of INTERNAL
Failed to update Server-LN-1 - The remote server rejected the login credentials: Token Rejected

Is it possible that the error “Passtrrough disabled” happens because of “Token rejected” but is getting showed wrong?

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