I have a TinkerBoard S.

 

In Bionic Desktop (kernel 4.4), the wireless icon menu lists two devices: wlan0 (which is the expected interface) and p2p0: I don't know this one, but it is always chosen for auto-connecting to the local wireless lan, receiving a random IP and not the one I configured on the router.

I can then manually connect to the network with the wlan0 interface the IP is correct.

 

How do I disable / remove / anyway stop that p2p0 interface to "steal" the network connection?

 

 

Neither of these two solutions worked:

• https://unix.stackexchange.com/a/111258/281076 (method #2) => iface p2p0 inet manual in /etc/network/interfaces
• https://unix.stackexchange.com/a/524302/281076 => sudo systemctl stop <wlan0.service>
  • this command timed out

 

The following worked

 

I added
 

[keyfile]

unmanaged-devices=interface-name:p2p0

As found in this comment:

 

Is that OK?