I bought the switch but can't get it to adopt. In my FW I see that it wants to connect to 172.25.0.2:8080. I am running a Unifi controller on my Raspy with Docker. Version 9.3.43. (IP: 192.168.15.100) The devices are in the same VLAN.
(Even if I connect the device directly to my PC, I cannot connect via SSH to the fallback IP (192.168.1.20) and get a connection timeout)

There is an article from someone with the same problem, there was something written about a "network override", I do not have this option in my controller and since I cannot connect to the switch via SSH, I cannot send the set inform command either.
Does anyone have any ideas? Neither Google nor GPT can help me... (I already have 2 APs running on the controller, so the controller itself is running fine)

Question

I bought the switch but can't get it to adopt. In my FW I see that it wants to connect to 172.25.0.2:8080. I am running a Unifi controller on my Raspy with Docker. Version 9.3.43. (IP: 192.168.15.100) The devices are in the same VLAN.
(Even if I connect the device directly to my PC, I cannot connect via SSH to the fallback IP (192.168.1.20) and get a connection timeout)

There is an article from someone with the same problem, there was something written about a "network override", I do not have this option in my controller and since I cannot connect to the switch via SSH, I cannot send the set inform command either. 
Does anyone have any ideas? Neither Google nor GPT can help me... (I already have 2 APs running on the controller, so the controller itself is running fine)

Accepted Answer

Found the solution, maybe it will help someone else:
In the DHCP Options -> Set option 43, enter the value as a string and the IP of the controller in Hex.

Answer

I have now also tried it with the smartphone app, unfortunately without success. The other hard resets were also unsuccessful. It is still trying to connect with the IP 172.25.0.2...
It's also strange that I can't access the thing via SSH, but I can ping it...

Answer

Thanks for the answers, I have already reset the switch several times, but unfortunately this was unsuccessful. (10s with the paper clip until the LED flashed)
I have also installed the latest version of the controller on my Raspy.

Answer

Hello shatter ,
The solution for me was actually the complete hard reset of the switch, for whatever reason. Apparently it is tested beforehand, but then possibly not reset again. After that I was able to integrate it normally, but this requires the latest or freshly installed version of the controller.
To be honest, there are always small problems. Especially if it's been in use for a while and you've run an update but don't have the latest version, problems can sometimes occur.

Answer

I could only adopt it in the app on my smartphone. It didn't work in the web interface.

Answer

Have you pressed the reset button for longer than 10 seconds? That was the solution for me, but together with a UDR7.

Your data. Your choice.

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