Network Manager stuck at "configuring interface"

TL;DR - how can I delete all network connection data from the system(not from the “System Settings Module” - I already tried that)? UPDATE - Tried wiping all the data. Didn’t work.

I have recently replaced my router with one that has both 5Ghz WiFi and 2.4Ghz (both “working” at the same time). Apart from the SSID and frequency, both connections have the same configuration - despite that, Manjaro can only connect to the 5Ghz connection - when I attempt to connect to the 2.4Ghz one, it’s always stuck at “configuring interface” and asks me for the password every minute or so (I triple checked to see if it was the correct password, and it was). I can guarantee that it’s not a hardware problem, and that it’s also not a problem from the way that the WiFi is configured - as both connections are nearly identical in terms of how they’re configured. After the 3rd time it asks for a password or so, it stops and says “wireless interface - no secrets were provided”. I looked in the logs and it just says association timed out reason=conn failed.

Now to the important part - I think I know what’s going on, I did use absolutely the same WiFi SSID with the other router as the SSID I’m using for the 2.4Ghz connection right now - maybe, with no better way of saying this coming to mind, there is some left-over data from the old connection and that’s what’s causing the errors. I tried deleting the connection from the System Settings Module, several times, but it didn’t fix anything. Maybe deleting absolutely all network connection data with a terminal command or just simply deleting a file might fix the issue. Perhaps my googling skills just failed me but I haven’t found anything of the sort when I searched for it. Any other recommendations are of course welcome.

System information

System:
  Kernel: 5.8.18-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.8-x86_64 
  root=UUID=49267eb0-b637-4c0d-8186-3b4f1567a55b rw quiet apparmor=1 
  security=apparmor resume=UUID=77cc4b1c-18f1-4758-9ca5-2c7558bd6e1e 
  udev.log_priority=3 
  Desktop: KDE Plasma 5.20.3 tk: Qt 5.15.1 wm: kwin_x11 dm: SDDM 
  Distro: Manjaro Linux 
Machine:
  Type: Convertible System: ASUSTeK product: ZenBook UX463FL_UX463FL v: 1.0 
  serial: <filter> 
  Mobo: ASUSTeK model: UX463FL v: 1.0 serial: <filter> 
  UEFI: American Megatrends v: UX463FL.304 date: 12/17/2019 
Battery:
  ID-1: BAT0 charge: 29.5 Wh condition: 45.9/50.0 Wh (92%) volts: 11.9/11.9 
  model: ASUSTeK ASUS Battery type: Li-ion serial: N/A status: Discharging 
  cycles: 55 
  Device-1: hid-0018:04F3:29B9.0001-battery model: ELAN9008:00 04F3:29B9 
  serial: N/A charge: N/A status: N/A 
CPU:
  Info: Quad Core model: Intel Core i7-10510U bits: 64 type: MT MCP 
  arch: Kaby Lake family: 6 model-id: 8E (142) stepping: C (12) microcode: DE 
  L2 cache: 8192 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 36812 
  Speed: 800 MHz min/max: 400/4900 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 
  4: 800 5: 800 6: 800 7: 800 8: 800 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf status: Not affected 
  Type: mds status: Not affected 
  Type: meltdown status: Not affected 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB filling 
  Type: srbds mitigation: TSX disabled 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel UHD Graphics vendor: ASUSTeK driver: i915 v: kernel 
  bus ID: 00:02.0 chip ID: 8086:9b41 
  Device-2: NVIDIA GP108BM [GeForce MX250] vendor: ASUSTeK driver: nvidia 
  v: 450.80.02 alternate: nouveau,nvidia_drm bus ID: 02:00.0 
  chip ID: 10de:1d52 
  Device-3: IMC Networks USB2.0 HD IR UVC WebCam type: USB driver: uvcvideo 
  bus ID: 1-5:4 chip ID: 13d3:56cb serial: <filter> 
  Display: x11 server: X.Org 1.20.9 compositor: kwin_x11 
  driver: modesetting,nvidia unloaded: intel,nouveau alternate: fbdev,nv,vesa 
  display ID: :0 screens: 1 
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 507x285mm (20.0x11.2") 
  s-diag: 582mm (22.9") 
  Monitor-1: eDP-1 res: 1920x1080 hz: 60 dpi: 158 size: 309x174mm (12.2x6.9") 
  diag: 355mm (14") 
  OpenGL: renderer: Mesa Intel UHD Graphics (CML GT2) v: 4.6 Mesa 20.2.2 
  direct render: Yes 
Audio:
  Device-1: Intel vendor: ASUSTeK driver: snd_hda_intel v: kernel 
  alternate: snd_soc_skl,snd_sof_pci bus ID: 00:1f.3 chip ID: 8086:02c8 
  Sound Server: ALSA v: k5.8.18-1-MANJARO 
Network:
  Device-1: Intel Wireless-AC 9462 driver: iwlwifi v: kernel port: 4000 
  bus ID: 00:14.3 chip ID: 8086:02f0 
  IF: wlo1 state: up mac: <filter> 
Drives:
  Local Storage: total: 953.87 GiB used: 15.02 GiB (1.6%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/nvme0n1 vendor: Samsung model: MZVLB1T0HALR-00000 
  size: 953.87 GiB block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: EXA7301Q scheme: GPT 
Partition:
  ID-1: / raw size: 200.00 GiB size: 195.86 GiB (97.93%) 
  used: 14.38 GiB (7.3%) fs: ext4 dev: /dev/nvme0n1p6 
  ID-2: /home raw size: 150.00 GiB size: 146.64 GiB (97.76%) 
  used: 654.0 MiB (0.4%) fs: ext4 dev: /dev/nvme0n1p5 
Swap:
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 8.00 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme0n1p7 
Sensors:
  System Temperatures: cpu: 40.0 C mobo: N/A 
  Fan Speeds (RPM): cpu: 0 
Info:
  Processes: 226 Uptime: 8m Memory: 15.42 GiB used: 1.65 GiB (10.7%) 
  Init: systemd v: 246 Compilers: gcc: 10.2.0 clang: 11.0.0 Packages: 1277 
  pacman: 1271 lib: 366 flatpak: 6 Shell: Bash v: 5.0.18 running in: yakuake 
  inxi: 3.1.08 

System log when trying to connect to the network

2    2/11/2020 12:41	wpa_supplicant	wlo1: Trying to associate with 40:9b:cd:a5:0e:b4 (SSID='007' freq=2432 MHz)
        22/11/2020 12:41	NetworkManager	<info>  [1606041702.2397] device (wlo1): supplicant interface state: authenticating -> associating
        22/11/2020 12:41	NetworkManager	<info>  [1606041702.2397] device (p2p-dev-wlo1): supplicant management interface state: authenticating -> associating
        22/11/2020 12:41	kernel	wlo1: authenticated
        22/11/2020 12:41	kernel	wlo1: associate with 40:9b:cd:a5:0e:b4 (try 1/3)
        22/11/2020 12:41	kernel	wlo1: associate with 40:9b:cd:a5:0e:b4 (try 2/3)
        22/11/2020 12:41	kernel	wlo1: associate with 40:9b:cd:a5:0e:b4 (try 3/3)
        22/11/2020 12:41	kernel	wlo1: association with 40:9b:cd:a5:0e:b4 timed out
        22/11/2020 12:41	wpa_supplicant	wlo1: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="007" auth_failures=1 duration=10 reason=CONN_FAILED
        22/11/2020 12:41	NetworkManager	<info>  [1606041702.5824] device (wlo1): supplicant interface state: associating -> disconnected
        22/11/2020 12:41	NetworkManager	<info>  [1606041702.5825] device (p2p-dev-wlo1): supplicant management interface state: associating -> disconnected
        22/11/2020 12:41	NetworkManager	<info>  [1606041712.5834] device (wlo1): supplicant interface state: disconnected -> scanning
        22/11/2020 12:41	NetworkManager	<info>  [1606041712.5835] device (p2p-dev-wlo1): supplicant management interface state: disconnected -> scanning
        22/11/2020 12:41	wpa_supplicant	wlo1: CTRL-EVENT-SSID-REENABLED id=0 ssid="007"
        22/11/2020 12:41	wpa_supplicant	wlo1: SME: Trying to authenticate with 40:9b:cd:a5:0e:b4 (SSID='007' freq=2432 MHz)
        22/11/2020 12:41	kernel	wlo1: authenticate with 40:9b:cd:a5:0e:b4
        22/11/2020 12:41	kernel	wlo1: send auth to 40:9b:cd:a5:0e:b4 (try 1/3)
        22/11/2020 12:41	NetworkManager	<info>  [1606041713.5980] device (wlo1): supplicant interface state: scanning -> authenticating
        22/11/2020 12:41	NetworkManager	<info>  [1606041713.5981] device (p2p-dev-wlo1): supplicant management interface state: scanning -> authenticating
        22/11/2020 12:41	wpa_supplicant	wlo1: Trying to associate with 40:9b:cd:a5:0e:b4 (SSID='007' freq=2432 MHz)
        22/11/2020 12:41	NetworkManager	<info>  [1606041713.6606] device (wlo1): supplicant interface state: authenticating -> associating
        22/11/2020 12:41	NetworkManager	<info>  [1606041713.6607] device (p2p-dev-wlo1): supplicant management interface state: authenticating -> associating
        22/11/2020 12:41	kernel	wlo1: authenticated
        22/11/2020 12:41	kernel	wlo1: associate with 40:9b:cd:a5:0e:b4 (try 1/3)
        22/11/2020 12:41	kernel	wlo1: associate with 40:9b:cd:a5:0e:b4 (try 2/3)
        22/11/2020 12:41	kernel	wlo1: associate with 40:9b:cd:a5:0e:b4 (try 3/3)
        22/11/2020 12:41	kernel	wlo1: association with 40:9b:cd:a5:0e:b4 timed out
        22/11/2020 12:41	wpa_supplicant	wlo1: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="007" auth_failures=2 duration=20 reason=CONN_FAILED
        22/11/2020 12:41	NetworkManager	<info>  [1606041714.0253] device (wlo1): supplicant interface state: associating -> disconnected
        22/11/2020 12:41	NetworkManager	<info>  [1606041714.0254] device (p2p-dev-wlo1): supplicant management interface state: associating -> disconnected
        22/11/2020 12:42	NetworkManager	<info>  [1606041724.0273] device (wlo1): supplicant interface state: disconnected -> scanning
        22/11/2020 12:42	NetworkManager	<info>  [1606041724.0274] device (p2p-dev-wlo1): supplicant management interface state: disconnected -> scanning
        22/11/2020 12:42	NetworkManager	<warn>  [1606041727.0387] device (wlo1): Activation: (wifi) association took too long
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0388] device (wlo1): state change: config -> failed (reason 'no-secrets', sys-iface-state: 'managed')
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0398] manager: NetworkManager state is now DISCONNECTED
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0431] device (wlo1): set-hw-addr: set MAC address to 82:02:29:D7:5E:56 (scanning)
        22/11/2020 12:42	NetworkManager	<warn>  [1606041727.0474] device (wlo1): Activation: failed for connection '007'
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0484] device (wlo1): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
        22/11/2020 12:42	kded5	"No such interface “org.freedesktop.DBus.Properties” on object at path /org/freedesktop/NetworkManager/ActiveConnection/9"
        22/11/2020 12:42	kdeconnectd	"No such interface “org.freedesktop.DBus.Properties” on object at path /org/freedesktop/NetworkManager/ActiveConnection/9"
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0906] device (wlo1): supplicant interface state: scanning -> disconnected
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0907] device (p2p-dev-wlo1): supplicant management interface state: scanning -> disconnected
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0953] device (wlo1): supplicant interface state: disconnected -> inactive
        22/11/2020 12:42	NetworkManager	<info>  [1606041727.0954] device (p2p-dev-wlo1): supplicant management interface state: disconnected -> inactive

can you add kernel version 5.9
reboot and press Esc to select new kernel in advanced section

sudo mhwd-kernel -i linux59
sudo pacman -S linux59-headers

Well ok, I did plan to update to 5.9 sooner or later anyway. I did update, and unsurprisingly it still doesn’t connect.

There aren’t any issues when trying to connect to any other WiFi connection other than this one which is why I don’t understand what the issue could be - other than the network manager confusing the new connection with the old connection that used the same name I don’t see what else could go wrong. And the only way I could fix that is by deleting all the data associated with that connection. I tried doing even that, listed all the files from /etc/NetworkManager/system-connections and then deleted the file with the SSID name of the network that’s causing the issues, and that didn’t help either.