Connected but cant assign static ip adress

What is the problem?

I want to assign a static ip adress to my octoprint (i want to connect it with home assistant and therefore i dont want i to change ip adress).
I have a TP Link Deco Mesh network - the octopi is connected with the wifi of this network but it doesnt show up in the list of connected devices -> so i can not give it a static ip adress.
Angry ip scanner sees the octopi - I have the correct ip adress (i can log in to the pi with the browser) - the ip adress is in range of the deco router - but it doesnt show up in the Deco app.
I reflashed the SD cad - completly new install but same problem.

I also tried connecting the pi with an internet cable to the router -> the pi gets an ip adress from the router but doesnt show up in the deco app

What did you already try to solve it?

I reflashed the SD cad - completly new install but same problem.
I edited some files with SSH to give it a static ip adress but the pi gets another ip adress (only the last 2 numbers of course)
10 restarts at least (pi and mesh router)

I ve read some guides on the network settings but it looks like they are old and the latest version of octoprint uses other files to configure the network setup...

Have you tried running in safe mode?

no

Did running in safe mode solve the problem?

no

Can someone help me out?

Raspberry Pi 3B
Ender 3v2

Hi Maarten,

you probably did this already, but just to be on the safe side - as I have gotten stuck about this in the past.

I my router some devices don't show up with their hostnames. (I have not been able to find out why.)
Maybe your Octopi and your Deco do the same. Have you looked for the IP- and/or the MAC-address of your RaspberryPi? Maybe it's there after all but "obfuscated".

HTH and all the best
Andreas

Since you didn't post a systeminfo bundle, we have to guess...

See https://raspberrypi.stackexchange.com/questions/147875/assigning-a-static-ip-address-in-bookworm.

If cat /etc/os-release doesn't say (bookworm), then let us know what it does say.

Found the solution:
This guide (gave it to gemini) helped me out:

So if anybody has the same problem -> this is the solution to give it a static ip adress