How is this "can't connect to WIFI" title any different from others?

Hey there, it is my first thread. It’s nice to be here and see such an active community :slight_smile: I thought about how to name the title because of recommendations, but it also just became a generic title. Sorry about that :sweat_smile:

Hello, because I live in a region at a higher altitude, I have no cable connection. Whenever spring comes and the sap shoots into the trees my wireless internet also gets a bit worse and that’s why I got a second (prepaid) router since last year. Meanwhile I’m using Manjaro KDE (Am a bit of a noob) on the laptop and can connect fine to the Ethernet and my regular router - but when I want to use the second (prepaid) router I can’t connect. I already tried ignoring the IPv6 via NetworkManager, tried all possible encryptions (WPA2/WPA3), as open or hidden network and even without encryption and password it doesn’t work.
I have read the following logs, followed some “traces”, but do not know if other threads are related to my problem.

System:
  Kernel: 5.12.1-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.12-x86_64 
  root=UUID=ee27f224-fc62-4798-91cc-1caf78bcdf62 rw quiet apparmor=1 
  security=apparmor udev.log_priority=3 
  Desktop: KDE Plasma 5.21.4 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM 
  Distro: Manjaro Linux base: Arch Linux 
Machine:
  Type: Laptop System: Acer product: Aspire E5-773G v: V1.15 serial: <filter> 
  Mobo: Acer model: Aspire E5-773G v: V1.15 serial: <filter> UEFI: Insyde 
  v: 1.15 date: 09/02/2016 
Battery:
  ID-1: BAT0 charge: 31.7 Wh (100.0%) condition: 31.7/37.0 Wh (85.6%) 
  volts: 17.2 min: 14.8 model: SANYO AL15A32 type: Li-ion serial: <filter> 
  status: Not charging 
Memory:
  RAM: total: 15.53 GiB used: 2.65 GiB (17.0%) 
  RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
CPU:
  Info: Dual Core model: Intel Core i7-6500U bits: 64 type: MT MCP 
  arch: Skylake family: 6 model-id: 4E (78) stepping: 3 microcode: E2 cache: 
  L2: 4 MiB bogomips: 20810 
  Speed: 700 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 700 2: 700 3: 700 
  4: 701 
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat arch_perfmon art 
  avx avx2 bmi1 bmi2 bts clflush clflushopt cmov constant_tsc cpuid 
  cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est 
  f16c flexpriority flush_l1d fma fpu fsgsbase fxsr ht hwp hwp_act_window 
  hwp_epp hwp_notify ibpb ibrs ida intel_pt invpcid invpcid_single lahf_lm lm 
  mca mce md_clear mmx monitor movbe mpx msr mtrr nonstop_tsc nopl nx pae pat 
  pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pln pni popcnt pse pse36 pti pts 
  rdrand rdseed rdtscp rep_good sdbg sep smap smep ss ssbd sse sse2 sse4_1 
  sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc tsc_adjust 
  tsc_deadline_timer vme vmx vnmi vpid x2apic xgetbv1 xsave xsavec xsaveopt 
  xsaves xtopology xtpr 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable 
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
  Type: meltdown mitigation: PTI 
  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: Full generic retpoline, IBPB: conditional, 
  IBRS_FW, STIBP: conditional, RSB filling 
  Type: srbds mitigation: Microcode 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Acer Incorporated ALI 
  driver: i915 v: kernel bus-ID: 00:02.0 chip-ID: 8086:1916 class-ID: 0300 
  Device-2: NVIDIA GK208BM [GeForce 920M] driver: N/A 
  alternate: nouveau, nvidia_drm, nvidia bus-ID: 01:00.0 chip-ID: 10de:1299 
  class-ID: 0302 
  Device-3: Realtek HD Webcam - Realtek type: USB driver: uvcvideo 
  bus-ID: 1-7:5 chip-ID: 0bda:57cc class-ID: 0e02 serial: <filter> 
  Display: x11 server: X.Org 1.20.11 compositor: kwin_x11 driver: 
  loaded: intel display-ID: :0 screens: 1 
  Screen-1: 0 s-res: 1600x900 s-dpi: 96 s-size: 423x238mm (16.7x9.4") 
  s-diag: 485mm (19.1") 
  Monitor-1: eDP1 res: 1600x900 hz: 60 dpi: 107 size: 380x210mm (15.0x8.3") 
  diag: 434mm (17.1") 
  OpenGL: renderer: Mesa Intel HD Graphics 520 (SKL GT2) v: 4.6 Mesa 21.0.3 
  direct render: Yes 
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Acer Incorporated ALI 
  driver: snd_hda_intel v: kernel alternate: snd_soc_skl bus-ID: 00:1f.3 
  chip-ID: 8086:9d70 class-ID: 0403 
  Device-2: NVIDIA GK208 HDMI/DP Audio driver: snd_hda_intel v: kernel 
  bus-ID: 01:00.1 chip-ID: 10de:0e0f class-ID: 0403 
  Device-3: Logitech G430 Surround Sound Gaming Headset type: USB 
  driver: hid-generic,snd-usb-audio,usbhid bus-ID: 1-1:2 chip-ID: 046d:0a4d 
  class-ID: 0300 
  Sound Server-1: ALSA v: k5.12.1-2-MANJARO running: yes 
  Sound Server-2: JACK v: 0.125.0 running: no 
  Sound Server-3: PulseAudio v: 14.2 running: yes 
  Sound Server-4: PipeWire v: 0.3.26 running: yes 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Acer Incorporated ALI driver: r8168 v: 8.048.03-NAPI modules: r8169 
  port: 3000 bus-ID: 02:00.0 chip-ID: 10ec:8168 class-ID: 0200 
  IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: <filter> 
  IP v4: <filter> type: dynamic noprefixroute scope: global 
  broadcast: <filter> 
  IP v6: <filter> type: noprefixroute scope: link 
  Device-2: Intel Wireless 3165 driver: iwlwifi v: kernel port: 3000 
  bus-ID: 03:00.0 chip-ID: 8086:3165 class-ID: 0280 
  IF: wlp3s0 state: down mac: <filter> 
  WAN IP: <filter> 
Bluetooth:
  Device-1: Intel Bluetooth wireless interface type: USB driver: btusb v: 0.8 
  bus-ID: 1-5:4 chip-ID: 8087:0a2a class-ID: e001 
  Report: rfkill ID: hci0 rfk-id: 2 state: down bt-service: enabled,running 
  rfk-block: hardware: no software: yes address: see --recommends 
Logical:
  Message: No logical block device data found. 
RAID:
  Message: No RAID data found. 
Drives:
  Local Storage: total: 1.03 TiB used: 94.19 GiB (9.0%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/sda maj-min: 8:0 vendor: Western Digital model: WD10JPVX-22JC3T0 
  size: 931.51 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s 
  rotation: 5400 rpm serial: <filter> rev: 1A01 scheme: GPT 
  ID-2: /dev/sdb maj-min: 8:16 vendor: LITE-ON model: CV1-8B128 
  size: 119.24 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s 
  rotation: SSD serial: <filter> rev: 201 scheme: GPT 
  Optical-1: /dev/sr0 vendor: HL-DT-ST model: DVDRAM GUE1N rev: 1.00 
  dev-links: cdrom 
  Features: speed: 24 multisession: yes audio: yes dvd: yes 
  rw: cd-r,cd-rw,dvd-r,dvd-ram state: running 
Partition:
  ID-1: / raw-size: 31.25 GiB size: 30.59 GiB (97.88%) used: 17.12 GiB (56.0%) 
  fs: ext4 dev: /dev/sdb3 maj-min: 8:19 label: N/A 
  uuid: ee27f224-fc62-4798-91cc-1caf78bcdf62 
  ID-2: /boot/efi raw-size: 1001 MiB size: 999 MiB (99.80%) 
  used: 296 KiB (0.0%) fs: vfat dev: /dev/sdb4 maj-min: 8:20 label: NO_LABEL 
  uuid: D25A-D892 
  ID-3: /home raw-size: 79.01 GiB size: 77.22 GiB (97.73%) 
  used: 9.01 GiB (11.7%) fs: ext4 dev: /dev/sdb2 maj-min: 8:18 label: N/A 
  uuid: e14420b7-3980-4bdd-9c6f-84579f0b82ab 
  ID-4: /mnt/HDD LINUX Drive raw-size: 931.51 GiB size: 915.82 GiB (98.31%) 
  used: 68.05 GiB (7.4%) fs: ext4 dev: /dev/sda1 maj-min: 8:1 
  label: HDD LINUX Drive uuid: 23243a2a-d6fc-470c-ac9d-a74fcfb77cbe 
Swap:
  Alert: No swap data was found. 
Unmounted:
  ID-1: /dev/sdb1 maj-min: 8:17 size: 8 GiB fs: swap label: N/A 
  uuid: d4bd290e-f77d-4731-9e97-4f4ee109d89f 
USB:
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 12 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Device-1: 1-1:2 info: Logitech G430 Surround Sound Gaming Headset 
  type: Audio,HID driver: hid-generic,snd-usb-audio,usbhid interfaces: 4 
  rev: 1.1 speed: 12 Mb/s power: 100mA chip-ID: 046d:0a4d class-ID: 0300 
  Device-2: 1-3:3 info: Kingston HyperX Pulsefire Surge 
  type: Mouse,Keyboard,HID driver: hid-generic,usbhid interfaces: 3 rev: 2.0 
  speed: 12 Mb/s power: 200mA chip-ID: 0951:16d3 class-ID: 0300 
  Device-3: 1-5:4 info: Intel Bluetooth wireless interface type: Bluetooth 
  driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s power: 100mA 
  chip-ID: 8087:0a2a class-ID: e001 
  Device-4: 1-7:5 info: Realtek HD Webcam - Realtek type: Video 
  driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA 
  chip-ID: 0bda:57cc class-ID: 0e02 serial: <filter> 
  Device-5: 1-8:6 info: Realtek RTS5129 Card Reader Controller 
  type: <vendor specific> driver: rtsx_usb,rtsx_usb_ms,rtsx_usb_sdmmc 
  interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 500mA chip-ID: 0bda:0129 
  class-ID: ff00 serial: <filter> 
  Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 3.0 speed: 5 Gb/s 
  chip-ID: 1d6b:0003 class-ID: 0900 
Sensors:
  System Temperatures: cpu: 41.0 C mobo: 38.0 C 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 226 Uptime: 1h 18m wakeups: 1 Init: systemd v: 247 
  tool: systemctl Compilers: gcc: N/A Packages: 1286 pacman: 1262 lib: 355 
  flatpak: 6 snap: 18 Shell: Bash v: 5.1.4 running-in: konsole inxi: 3.3.04 

the network section from the lspci -v command:

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
        Subsystem: Acer Incorporated [ALI] Device 0983
        Flags: bus master, fast devsel, latency 0, IRQ 128
        I/O ports at 3000 [size=256]
        Memory at a4204000 (64-bit, non-prefetchable) [size=4K]
        Memory at a4200000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: r8168
        Kernel modules: r8169, r8168

03:00.0 Network controller: Intel Corporation Wireless 3165 (rev 81)
        Subsystem: Intel Corporation Dual Band Wireless AC 3165
        Flags: bus master, fast devsel, latency 0, IRQ 129
        Memory at a4100000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

I could also give the logs from “journalctl -f” and “dmesg -w”, but do not want to flood the post at first, but only if someone says it is needed.
I am hopeful to get this set up, with some help :slight_smile: thanks in advance!
Cheers

You could try using the r8169 module, just disable the r8168

Unfortunately not the solution. Just cut my cable connection, and reinstalled the module/package.

Has wifi connection via this router ever worked?
Does it work with other devices?
Or is just your Manjaro machine affected?

You said you tried different encryption options and no encryption as well - you’d have to have used the ethernet connection to re-configure the router to do this,
so that part works.
Correct?

In the logs
journalctl -f
and
sudo dmesg -w
there should be relatively clear messages of what is going on during a connection attempt and whether a connection is established or for what reason it fails.

re a possible different failure mode:
How is that router connected to the internet?
What is different between this and the other (older?) one?
How was this connected?

1 Like

Yes! I can connect to this router with my phone and my Windows Desktop. It just does not work with the Manjaro machine! Yes, you’re right: yesterday I also tried to set the WIFI (!) settings in the router interface via browser and in the network manager via Ethernet (works without troubles, just plugged the cable in and it works) from said router, but I was not able to set up the WIFI-connection.

Journalctl -f says:

Mai 13 22:50:00 Mango-Laptop NetworkManager[548]: <info>  [1620939000.9018] device (p2p-dev-wlp3s0): supplicant management interface state: authenticating -> associating
Mai 13 22:50:00 Mango-Laptop kernel: wlp3s0: authenticated
Mai 13 22:50:00 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
Mai 13 22:50:01 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
Mai 13 22:50:01 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
Mai 13 22:50:01 Mango-Laptop kernel: wlp3s0: association with 84:d1:5a:d9:62:96 timed out
Mai 13 22:50:01 Mango-Laptop wpa_supplicant[610]: wlp3s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="TTRoy" auth_failures=2 duration=20 reason=CONN_FAILED
Mai 13 22:50:01 Mango-Laptop NetworkManager[548]: <info>  [1620939001.2471] device (wlp3s0): supplicant interface state: associating -> disconnected
Mai 13 22:50:01 Mango-Laptop NetworkManager[548]: <info>  [1620939001.2473] device (p2p-dev-wlp3s0): supplicant management interface state: associating -> disconnected
Mai 13 22:50:11 Mango-Laptop NetworkManager[548]: <info>  [1620939011.2457] device (wlp3s0): supplicant interface state: disconnected -> scanning
Mai 13 22:50:11 Mango-Laptop NetworkManager[548]: <info>  [1620939011.2457] device (p2p-dev-wlp3s0): supplicant management interface state: disconnected -> scanning
Mai 13 22:50:12 Mango-Laptop NetworkManager[548]: <warn>  [1620939012.0089] device (wlp3s0): Activation: (wifi) association took too long
Mai 13 22:50:12 Mango-Laptop NetworkManager[548]: <info>  [1620939012.0090] device (wlp3s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Mai 13 22:50:12 Mango-Laptop NetworkManager[548]: <info>  [1620939012.0098] sup-iface[27ca407e86de1918,0,wlp3s0]: wps: type pbc start...
Mai 13 22:50:12 Mango-Laptop NetworkManager[548]: <warn>  [1620939012.0139] device (wlp3s0): Activation: (wifi) asking for new secrets
Mai 13 22:50:12 Mango-Laptop wpa_supplicant[610]: wlp3s0: WPS-PBC-ACTIVE
Mai 13 22:50:12 Mango-Laptop kded5[1150]: plasma-nm: virtual NMVariantMapMap SecretAgent::GetSecrets(const NMVariantMapMap&, const QDBusObjectPath&, const QString&, const QStringList&, uint)
Mai 13 22:50:12 Mango-Laptop kded5[1150]: plasma-nm: Path: "/org/freedesktop/NetworkManager/Settings/2"
Mai 13 22:50:12 Mango-Laptop kded5[1150]: plasma-nm: Setting name: "802-11-wireless-security"
Mai 13 22:50:12 Mango-Laptop kded5[1150]: plasma-nm: Hints: ()
Mai 13 22:50:12 Mango-Laptop kded5[1150]: plasma-nm: Flags: 15
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6228] device (wlp3s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6271] device (wlp3s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6293] device (wlp3s0): Activation: (wifi) connection 'TTRoy' has security, and secrets exist.  No new secrets needed.
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6299] Config: added 'ssid' value 'TTRoy'
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6304] Config: added 'scan_ssid' value '1'
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6309] Config: added 'bgscan' value 'simple:30:-70:86400'
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6314] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK'
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6319] Config: added 'psk' value '<hidden>'
Mai 13 22:50:16 Mango-Laptop wpa_supplicant[610]: wlp3s0: SME: Trying to authenticate with 84:d1:5a:d9:62:96 (SSID='TTRoy' freq=2412 MHz)
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: authenticate with 84:d1:5a:d9:62:96
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6620] device (wlp3s0): supplicant interface state: scanning -> authenticating
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6621] device (p2p-dev-wlp3s0): supplicant management interface state: scanning -> authenticating
Mai 13 22:50:16 Mango-Laptop wpa_supplicant[610]: wlp3s0: Trying to associate with 84:d1:5a:d9:62:96 (SSID='TTRoy' freq=2412 MHz)
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6693] device (wlp3s0): supplicant interface state: authenticating -> associating
Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info>  [1620939016.6693] device (p2p-dev-wlp3s0): supplicant management interface state: authenticating -> associating
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: authenticated
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
Mai 13 22:50:16 Mango-Laptop kernel: wlp3s0: association with 84:d1:5a:d9:62:96 timed out
Mai 13 22:50:17 Mango-Laptop wpa_supplicant[610]: wlp3s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="TTRoy" auth_failures=1 duration=10 reason=CONN_FAILED
Mai 13 22:50:17 Mango-Laptop NetworkManager[548]: <info>  [1620939017.0170] device (wlp3s0): supplicant interface state: associating -> disconnected
Mai 13 22:50:17 Mango-Laptop NetworkManager[548]: <info>  [1620939017.0172] device (p2p-dev-wlp3s0): supplicant management interface state: associating -> disconnected
Mai 13 22:50:27 Mango-Laptop NetworkManager[548]: <info>  [1620939027.0238] device (wlp3s0): supplicant interface state: disconnected -> scanning
Mai 13 22:50:27 Mango-Laptop NetworkManager[548]: <info>  [1620939027.0240] device (p2p-dev-wlp3s0): supplicant management interface state: disconnected -> scanning
Mai 13 22:50:30 Mango-Laptop wpa_supplicant[610]: wlp3s0: CTRL-EVENT-SSID-REENABLED id=0 ssid="TTRoy"
Mai 13 22:50:30 Mango-Laptop wpa_supplicant[610]: wlp3s0: SME: Trying to authenticate with 84:d1:5a:d9:62:96 (SSID='TTRoy' freq=2412 MHz)
Mai 13 22:50:30 Mango-Laptop kernel: wlp3s0: authenticate with 84:d1:5a:d9:62:96
Mai 13 22:50:30 Mango-Laptop NetworkManager[548]: <info>  [1620939030.6992] device (wlp3s0): supplicant interface state: scanning -> authenticating
Mai 13 22:50:30 Mango-Laptop kernel: wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
Mai 13 22:50:30 Mango-Laptop NetworkManager[548]: <info>  [1620939030.6993] device (p2p-dev-wlp3s0): supplicant management interface state: scanning -> authenticating
Mai 13 22:50:30 Mango-Laptop wpa_supplicant[610]: wlp3s0: Trying to associate with 84:d1:5a:d9:62:96 (SSID='TTRoy' freq=2412 MHz)
Mai 13 22:50:30 Mango-Laptop kernel: wlp3s0: authenticated
Mai 13 22:50:30 Mango-Laptop NetworkManager[548]: <info>  [1620939030.7100] device (wlp3s0): supplicant interface state: authenticating -> associating
Mai 13 22:50:30 Mango-Laptop NetworkManager[548]: <info>  [1620939030.7102] device (p2p-dev-wlp3s0): supplicant management interface state: authenticating -> associating
Mai 13 22:50:30 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
Mai 13 22:50:30 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
Mai 13 22:50:30 Mango-Laptop kernel: wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
Mai 13 22:50:31 Mango-Laptop kernel: wlp3s0: association with 84:d1:5a:d9:62:96 timed out
Mai 13 22:50:31 Mango-Laptop wpa_supplicant[610]: wlp3s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="TTRoy" auth_failures=2 duration=20 reason=CONN_FAILED
Mai 13 22:50:31 Mango-Laptop NetworkManager[548]: <info>  [1620939031.0487] device (wlp3s0): supplicant interface state: associating -> disconnected
Mai 13 22:50:31 Mango-Laptop NetworkManager[548]: <info>  [1620939031.0488] device (p2p-dev-wlp3s0): supplicant management interface state: associating -> disconnected
Mai 13 22:50:41 Mango-Laptop NetworkManager[548]: <info>  [1620939041.0467] device (wlp3s0): supplicant interface state: disconnected -> scanning
Mai 13 22:50:41 Mango-Laptop NetworkManager[548]: <info>  [1620939041.0467] device (p2p-dev-wlp3s0): supplicant management interface state: disconnected -> scanning
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <warn>  [1620939042.0083] device (wlp3s0): Activation: (wifi) association took too long
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0084] device (wlp3s0): state change: config -> failed (reason 'no-secrets', sys-iface-state: 'managed')
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0137] device (wlp3s0): set-hw-addr: set MAC address to 06:77:2B:84:4C:7C (scanning)
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <warn>  [1620939042.0193] device (wlp3s0): Activation: failed for connection 'TTRoy'
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0210] device (wlp3s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Mai 13 22:50:42 Mango-Laptop DiscoverNotifier[1233]: "Keine derartige Schnittstelle »org.freedesktop.DBus.Properties« des Objekts im Pfad /org/freedesktop/NetworkManager/ActiveConnection/8"
Mai 13 22:50:42 Mango-Laptop kdeconnectd[1239]: "Keine derartige Schnittstelle »org.freedesktop.DBus.Properties« des Objekts im Pfad /org/freedesktop/NetworkManager/ActiveConnection/8"
Mai 13 22:50:42 Mango-Laptop kded5[1150]: "Keine derartige Schnittstelle »org.freedesktop.DBus.Properties« des Objekts im Pfad /org/freedesktop/NetworkManager/ActiveConnection/8"
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0657] device (wlp3s0): supplicant interface state: scanning -> disconnected
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0674] device (p2p-dev-wlp3s0): supplicant management interface state: scanning -> disconnected
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0679] device (wlp3s0): supplicant interface state: disconnected -> inactive
Mai 13 22:50:42 Mango-Laptop NetworkManager[548]: <info>  [1620939042.0680] device (p2p-dev-wlp3s0): supplicant management interface state: disconnected -> inactive
Mai 13 22:50:42 Mango-Laptop plasmashell[1220]: file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationPopup.qml:116:15: QML QQuickItem: Binding loop detected for property "height" 

and dmesg -w goes with:

[ 8285.794019] wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
[ 8285.806248] wlp3s0: authenticated
[ 8285.809250] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
[ 8285.914668] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
[ 8286.017860] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
[ 8286.121235] wlp3s0: association with 84:d1:5a:d9:62:96 timed out
[ 8299.824032] wlp3s0: authenticate with 84:d1:5a:d9:62:96
[ 8299.826318] wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
[ 8299.836073] wlp3s0: authenticated
[ 8299.837786] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
[ 8299.941206] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
[ 8300.044547] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
[ 8300.147989] wlp3s0: association with 84:d1:5a:d9:62:96 timed out
[ 8310.231494] audit: type=1111 audit(1620939232.225:69658): pid=548 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='op=statistics arg="refresh-rate-ms" pid=1220 uid=1000 result=success exe="/usr/bin/NetworkManager" hostname=? addr=? terminal=? res=success'
[ 8314.245271] wlp3s0: authenticate with 84:d1:5a:d9:62:96
[ 8314.247978] wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
[ 8314.257850] wlp3s0: authenticated
[ 8314.261086] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
[ 8314.364412] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
[ 8314.467742] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
[ 8314.571084] wlp3s0: association with 84:d1:5a:d9:62:96 timed out
[ 8325.631344] wlp3s0: authenticate with 84:d1:5a:d9:62:96
[ 8325.633632] wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
[ 8325.643489] wlp3s0: authenticated
[ 8325.647787] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
[ 8325.751264] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
[ 8325.854468] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
[ 8325.957788] wlp3s0: association with 84:d1:5a:d9:62:96 timed out
[ 8341.916993] wlp3s0: authenticate with 84:d1:5a:d9:62:96
[ 8341.919913] wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
[ 8341.929508] wlp3s0: authenticated
[ 8341.934327] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
[ 8342.037731] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
[ 8342.141154] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
[ 8342.247738] wlp3s0: association with 84:d1:5a:d9:62:96 timed out
[ 8353.306040] wlp3s0: authenticate with 84:d1:5a:d9:62:96
[ 8353.310010] wlp3s0: send auth to 84:d1:5a:d9:62:96 (try 1/3)
[ 8353.324426] wlp3s0: authenticated
[ 8353.327633] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 1/3)
[ 8353.430949] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 2/3)
[ 8353.534348] wlp3s0: associate with 84:d1:5a:d9:62:96 (try 3/3)
[ 8353.641064] wlp3s0: association with 84:d1:5a:d9:62:96 timed out  

The newer “router” is actually a mobile box, works through sim card and should work anywhere. Could this be a problem? I hadn’t thought of that at all. Cable still works.

The “older” router goes to a switch that runs to an antenna.

Thanks in advance.

Mai 13 22:50:16 Mango-Laptop NetworkManager[548]: <info> [1620939016.6621] device (p2p-dev-wlp3s0): supplicant management interface state: scanning -> authenticating

This line in the association and authentication sequence is different from what I see happening with my working connection.
This seems to be the point where it starts to fail, to go wrong.

device (p2p-dev-wlp3s0)
looks strange to me

It’s a different device, a special configuration that you maybe did inadvertantly in NetworkManager?

It should just be
device (wlp3s0)

From a very cursory look around I found this:

[Solved] Wifi dont set up : "Failed to enable P2P Device interface" / Installation / Arch Linux Forums

where the reason for failure was a conflict because both systemd-networkd.service and NetworkManager.service where active simultaneously.

There should only be one, not both.

systemctl list-unit-files --type=service | grep enabled

(second column is the current value, third column is the default - look at the second column)

Check whether that is the case for you and if so, disable systemd-networkd.service
… or disable NetworkManager.service but then (I think) you can’t use the wifi-applet in your panel …

Thanks for your effort, Nachlese!
I tried both; I turned off systemd-networkd, but then the Ethernet port also stopped working. Although I wanted to try the network manager, after disabling systemd-networkd the GUI of the network manager disappeared, manual IP config didn’t work then either. Then I had to use Timeshift. After restoring systemd-networkd was disabled, network manager was on. Have now also tried again manually not via dhcp but statically, then I could connect to the router - but it was restricted. Meanwhile I think it could be a driver problem of the network card. I did a kernel update the other day, maybe I’ll try a downgrade.

Did you try kernel 5.10?