Source RCON was banned from srcds Server (Garrys Mod)

Technical Support
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1

OS Name/Version: Debian 12 (bookworm)

Product Name/Version: 2.6.0.6 - 20241120.1

Problem Description:

Whenever I try to start the Garrys Mod Server, the source RCON is banned from the srcds server and I can’t enter anything in the AMP console. I located the ban files and all are empty. It is then always displayed as if the server had never been started. Anyone having the same problem? I am using the Generic Module from Garry’s Mod.

Log from AMP Instance:

[19:47:09] [System:K1ller0561 Debug/31] : Source RCON connecting to xxx.xxx.xxx.xxx:10004…
Connection to Steam servers successful.
Public IP is xxx.xxx.xxx.xxx.
Assigned anonymous gameserver Steam ID [A-1:1142731788(41107)].
01/12/2025 - 20:47:10: Connection to Steam servers successful.
01/12/2025 - 20:47:10: Public IP is xxx.xxx.xxx.xxx.
01/12/2025 - 20:47:10: Assigned anonymous gameserver Steam ID [A-1:1142731788(41107)].
VAC secure mode is activated.
01/12/2025 - 20:47:11: VAC secure mode is activated.
[19:47:16] [System:K1ller0561 Debug/24] : Source RCON sending login request…
xxx.xxx.xxx.xxx tried to get banned using the HTTP(S) request to RCON. 26
[19:47:16] [System:K1ller0561 Warning/28] : Source RCON packet data empty. This typically means the server closed the connection.
[19:47:16] [RCON:K1ller0561 Info/28] : Source RCON disconnecting…
[19:47:17] [RCON:K1ller0561 Info/28] : Source RCON disconnected

2

Generate a new “Remote Admin Password” and restart the server

3

Its the same log output. New Admin Password generated and bannend. Server restarted.

Other srcds Games like CS:S, TF2, L4D2 run fine with generic module. Rcon Password works.

In GMOD is only this problem here.

4

Does the server actually start?

Sometimes the RCON messages are a symptom of the server not starting properly, rather than the issue itself

Also check that you have a valid map name configured

5

The map is loading, that’s no problem. I have already checked the logs and everything else looks normal. The server settings are also accepted by the server. Only when AMP tries to connect to RCON, the web interface is banned and the RCON connection to the server is terminated. AMP still shows that the server is starting, but in the Steam browser the server is shown as online. Is there an option in srcds that the IP address is not banned? So a kind of whitelist?

xxx.xxx.xxx.xxx tried to get banned using the HTTP(S) request to RCON. 26

It looks like, my https connection was the problem? Or something other?

6

Doesn’t make a whole lot of sense to me, since source RCON is not over http(s)

Is the IP binding on this server the same as the other servers?

7

IP binding on this server is the same as the other servers. That’s why I’m wondering why GMOD doesn’t run and the other srcds run with the same configuration without any problems. Something must be different with GMOD than with the other srcds servers.

8

I created a new instance to test, worked ootb, so it’s a weird one. Never seen that banned message before

9

I have found a solution: The password was too short with 10 characters. I have generated a new password on an Internet site, which contains upper and lower case letters and numbers. This time the password is 20 characters long and it also starts the server. Done! :slight_smile:

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