WPA-Supplicant messages in syslog

[hstoellinger]

Hello,

Periodically (every 1 to 4 mins) I keep getting the following message in syslog:

... wpa_supplicant[982]: wlp5s0: CTRL-EVENT-SCAN-FAILED ret=-100

I do NOT want to define a WIFI-connection to my modem/router, and neither want the
laptop to be a hotspot.

I wonder how to get rid of these messages.
Regards
H. Stoellinger

My NetworkManager.conf file is...

[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
#[device]
#match-device=driver:iwlwifi
#wifi.scan-rand-mac-address=no
[logging]
level=INFO
#domains=WIFI

inxi -F information...

System: Host: hslaptop Kernel: 5.8.0-26-generic x86_64 bits: 64 Desktop: KDE Plasma 5.19.5
Distro: Ubuntu 20.10 (Groovy Gorilla)
Machine: Type: Laptop System: Sony product: VGN-AW11M_H v: C6010CXT
serial: <superuser/root required>
Mobo: Sony model: VAIO serial: <superuser/root required> BIOS: American Megatrends
v: R0200Y2 date: 08/12/2008
Battery: ID-1: BAT0 charge: 72.2 Wh condition: 72.2/73.3 Wh (98%)
CPU: Info: Dual Core model: Intel Core2 Duo P8400 bits: 64 type: MCP L2 cache: 3072 KiB
Speed: 1596 MHz min/max: 1600/2267 MHz Core speeds (MHz): 1: 1596 2: 1596
Graphics: Device-1: NVIDIA G98M [GeForce 9300M GS] driver: nvidia v: 340.108
Device-2: Ricoh Visual Communication Camera VGP-VCC9 [R5U870] type: USB driver: uvcvideo
Display: x11 server: X.Org 1.20.9 driver: nvidia note: display driver n/a FAILED: nvidia
unloaded: modesetting resolution: 1680x945~60Hz
OpenGL: renderer: GeForce 9300M GS/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108
Audio: Device-1: Intel 82801I HD Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.8.0-26-generic
Network: Device-1: Marvell 88E8055 PCI-E Gigabit Ethernet driver: sky2
IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: 00:1d:ba:86:ca:c7
Device-2: Intel WiFi Link 5100 driver: iwlwifi
IF: wlp5s0 state: down mac: 00:21:5d:b5:9a:72
...

I still get the above syslog message, even after activating the wlp5s0 link