This is by design. Each server instance needs its own RCON port.

PS if you are new to server hosting check out OmegaManager - it will make your life a lot easier

In T181594#2614068, @operativo wrote:

PS if you are new to server hosting check out OmegaManager - it will make your life a lot easier

Wouldn't be so bad if OM didn't take 30minutes to actually start up on a system restart.

In T181594#2614066, @operativo wrote:

This is by design. Each server instance needs its own RCON port.

Why can I use the same Query and Game port, but not the RCON port?

Just because you can doesn't mean that you should.
You also have to consider security.
various differences, and reasonings for those differences.
You could find the solutions to the questions you ask if you simply went searching for the answers about ports, udp, tcp, ssl, tls, and etc. In fact, chat gpt will effectively answer most of these such questions and thus help you with understanding these things.

Is there a reason you can't bring yourself to change and configure new ports for a second instance?

@DeGrinchy I think his issue is that he can't assign the same RCon port to an instance bound to a different IP. In terms of how IPv4 works, using the same port on a different IP address should absolutely be possible. If RCon doesn't allow for that, then it's a bug or limitation with how RCon is implemented and/or configured, and worth reporting to the developers (or Battleye).

In T181594#2614695, @sanguine00 wrote:

@DeGrinchy I think his issue is that he can't assign the same RCon port to an instance bound to a different IP. In terms of how IPv4 works, using the same port on a different IP address should absolutely be possible. If RCon doesn't allow for that, then it's a bug or limitation with how RCon is implemented and/or configured, and worth reporting to the developers (or Battleye).

We use a Failover IP for DayZ servers to preserve the primary IP of our host machines. After check, the RCon is inaccessible on the primary IP (starting with 5.9.XXX.XXX) when the RConIP is set to the Failover IP.

@Sm0ky problem comes from elsewhere. I was personally convinced it was related to BattlEye.

@Geez, can you please mark it as "not solved"?

I have 2 IPv4 addresses assigned to my Windows Server because I don't need 2 physical machines. I have a 7950X, so I can divide the server through IPs.

We can set up 193.25.252.10:27016 and 193.25.252.20:27016 on the same machine without any problems. It will allow it.

One DayZ server has the command line -ip 193.25.252.10, and the other has -ip 193.25.252.20.

The game ports 2302 and 2302 are used for both IPV4 addresses. The Steam Query is 27016. They all work correctly.

There's no reason why RCON wouldn't work. It's either a DayZ bug or a BattlEye bug.

https://www.battleye.com/support/documentation/

It's mentioned here that we can define the IP address. I already did it for both servers, but they don't work if the same rcon port is used, even with the IPs being different.

So one IP needs to have 2305 and the other one, for example, 2405.

Can you please take a look at this?

In T181594#2614795, @Sm0ky wrote:

@Geez, can you please mark it as "not solved"?

I have 2 IPv4 addresses assigned to my Windows Server because I don't need 2 physical machines. I have a 7950X, so I can divide the server through IPs.

We can set up 193.25.252.10:27016 and 193.25.252.20:27016 on the same machine without any problems. It will allow it.

One DayZ server has the command line -ip 193.25.252.10, and the other has -ip 193.25.252.20.

The game ports 2302 and 2302 are used for both IPV4 addresses. The Steam Query is 27016. They all work correctly.

There's no reason why RCON wouldn't work. It's either a DayZ bug or a BattlEye bug.

https://www.battleye.com/support/documentation/

It's mentioned here that we can define the IP address. I already did it for both servers, but they don't work if the same rcon port is used, even with the IPs being different.

So one IP needs to have 2305 and the other one, for example, 2405.

Can you please take a look at this?

Have you tried to contact BattlEye about this? https://www.battleye.com/contact/

In T181594#2615100, @Geez wrote:

In T181594#2614795, @Sm0ky wrote:

@Geez, can you please mark it as "not solved"?

I have 2 IPv4 addresses assigned to my Windows Server because I don't need 2 physical machines. I have a 7950X, so I can divide the server through IPs.

We can set up 193.25.252.10:27016 and 193.25.252.20:27016 on the same machine without any problems. It will allow it.

One DayZ server has the command line -ip 193.25.252.10, and the other has -ip 193.25.252.20.

The game ports 2302 and 2302 are used for both IPV4 addresses. The Steam Query is 27016. They all work correctly.

There's no reason why RCON wouldn't work. It's either a DayZ bug or a BattlEye bug.

https://www.battleye.com/support/documentation/

It's mentioned here that we can define the IP address. I already did it for both servers, but they don't work if the same rcon port is used, even with the IPs being different.

So one IP needs to have 2305 and the other one, for example, 2405.

Can you please take a look at this?

Have you tried to contact BattlEye about this? https://www.battleye.com/contact/

They advised reaching out to the DayZ developers about this bug, so please forward this bug to the DayZ team.

Hello Sm0ky.
Maybe something else uses the port already? Could you try using a different one (like 1xxxx) and see if anything changes?

In T181594#2616237, @Geez wrote:

Hello Sm0ky.
Maybe something else uses the port already? Could you try using a different one (like 1xxxx) and see if anything changes?

Server 1:

RConPassword 123456789
Rconport 2305
RestrictRCon 0
RconIP 193.25.252.10

Server 2:

RConPassword 123456789
Rconport 2305
RestrictRCon 0
RconIP 193.25.252.20

Changing IP doesn't help. Only changing the RCON port. That doesn't make sense.

Server 1 has 193.25.252.10 2302 game port and 27016 query port
Server 2 has 193.25.252.20 2302 game port and 27016 query port

They work! Game port and Steam query. There's no conflict...

but... if rcon has the same port... they don't work.

Even forcing the IP through the BattlEye config...

DayZ starts and shows that it's using the defined IP address, but no one can connect to rcon

Rconport 2305

We meant to say you should change this and do another test. Use e.g. 12305 for both and test again

In T181594#2618331, @Geez wrote:

Rconport 2305

We meant to say you should change this and do another test. Use e.g. 12305 for both and test again

It doesn't help. Why would a higher port change anything?

In T181594#2630564, @Sm0ky wrote:

In T181594#2618331, @Geez wrote:

Rconport 2305

We meant to say you should change this and do another test. Use e.g. 12305 for both and test again

It doesn't help. Why would a higher port change anything?

The point was to make sure the port is not taken by anything else.

In T181594#2631891, @Geez wrote:

In T181594#2630564, @Sm0ky wrote:

In T181594#2618331, @Geez wrote:

Rconport 2305

We meant to say you should change this and do another test. Use e.g. 12305 for both and test again

It doesn't help. Why would a higher port change anything?

The point was to make sure the port is not taken by anything else.

The problem is still ongoing. Have the DayZ developers said anything about it?

We also have this problem.