[SOLVED] Network manager won't connect my WLAN

[dd0ul]

Moin,
I've been a KDE neon user for many years. So far I've always done dist-upgrades. That didn't work anymore, so I had to reinstall (yammy) and copy back my backup of the home directory. That worked quite well, but there are minor problems.

First: wifi won't connect to my wifi. I see different WLANs in the list and can connect to a public non-encrypted WLAN. But not to my own encyptet WLAN (not sure if the encryption is the problem). I see "configuring interface" for a split second, but after that the "nver userd" info. Content in my /etc/NetworkManager/system-connections/beaujolais.nmconnection:

[connection]
id=beaujolais
uuid=fb5d94a1-401a-40b2-b939-34065d990d1e
type=wifi

[wifi]
mode=infrastructure
ssid=beaujolais

[wifi-security]
key-mgmt=wpa-psk
psk=****************************************

[ipv4]
method=auto

[ipv6]
addr-gen-mode=stable-privacy
method=auto

[proxy]

journalctl -u NetworkManager.service

Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4224] device (wlp58s0): Activation: starting connection 'beaujolais' (fb5d94a1-401a-40b2-b939-34065d990d1e)
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4225] device (wlp58s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4229] device (wlp58s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4233] device (wlp58s0): Activation: (wifi) access point 'beaujolais' has security, but secrets are required.
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4233] device (wlp58s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4235] sup-iface[4dbcc800efa9a90c,1,wlp58s0]: wps: type pbc start...
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4255] device (wlp58s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4261] device (wlp58s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4265] device (wlp58s0): Activation: (wifi) connection 'beaujolais' has security, and secrets exist. No new secrets n>
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4265] Config: added 'ssid' value 'beaujolais'
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4266] Config: added 'scan_ssid' value '1'
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4266] Config: added 'bgscan' value 'simple:30:-70:86400'
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4266] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK SAE FT-SAE'
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4266] Config: added 'psk' value '<hidden>'
Feb 20 20:27:28 solaris NetworkManager[6002]: <warn> [1676921248.4404] sup-iface[4dbcc800efa9a90c,1,wlp58s0]: assoc[18b327a9c83a5bdd]: failure to add network: invalid message format
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4409] device (wlp58s0): state change: config -> failed (reason 'supplicant-failed', sys-iface-state: 'managed')
Feb 20 20:27:28 solaris NetworkManager[6002]: <warn> [1676921248.4414] device (wlp58s0): Activation: failed for connection 'beaujolais'
Feb 20 20:27:28 solaris NetworkManager[6002]: <info> [1676921248.4428] device (wlp58s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')

How can I debug this? Any hint? is there a classic mistake I can make?

[Snowhog]

Have you tried simply creating a new wifi configuration through NetworkManager?

[Schwarzer Kater]

[…] and can connect to a public non-encrypted WLAN. But not to my own encyptet WLAN […]

Does "wpa-psk" match the encryption type of your WLAN router?

And are you absolutely sure that there is no writing error in the "psk" string?

[dd0ul]

Thanks for the answers. Installing linux-firmware.deb did the trick.
Micha