Latest Manjaro KDE, wifi stuck at configuring interface/setting network address

I have a fully updated Manjaro KDE even systemd is newer than repos since around a week or so. I removed some softwares like steam and msoffice which I did not use. I have been using it for a month without any problems. Today I reinstalled steam-manjaro. And after rebooting I can't connect to any wifi network, the plasmoid/widget gets stuck at configuring interface or sometimes at setting network address. I have already rebooted mutliple times but the issue is still there. I am using USB tethering. I am attaching inxi -Fxz.
$ inxi -Fxz

  Host: dell Kernel: 4.19.6-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.2.1 
  Desktop: KDE Plasma 5.14.4 Distro: Manjaro Linux 
  Type: Laptop System: Dell product: Vostro 15-3568 v: N/A serial: <filter> 
  Mobo: Dell model: 06XGVW v: A00 serial: <filter> UEFI [Legacy]: Dell 
  v: 2.6.0 date: 05/15/2018 
  ID-1: BAT0 charge: 34.3 Wh condition: 34.9/41.4 Wh (84%) 
  model: Panasonic DELL 78V9D72 status: Charging 
  Device-1: hidpp_battery_0 model: Logitech Wireless Mouse 
  charge: 55% (should be ignored) status: Discharging 
  Topology: Dual Core model: Intel Core i5-7200U bits: 64 type: MT MCP 
  arch: Kaby Lake rev: 9 L2 cache: 3072 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 21704 
  Speed: 500 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 500 2: 500 
  3: 500 4: 500 
  Device-1: Intel HD Graphics 620 vendor: Dell driver: i915 v: kernel 
  bus ID: 00:02.0 
  Device-2: AMD Sun LE [Radeon HD 8550M / R5 M230] vendor: Dell 
  driver: radeon v: kernel bus ID: 01:00.0 
  Display: x11 server: 1.20.3 driver: ati,intel,radeon 
  unloaded: modesetting resolution: <xdpyinfo missing> 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 620 (Kaby Lake GT2) 
  v: 4.5 Mesa 18.2.6 direct render: Yes 
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell 
  driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
  Sound Server: ALSA v: k4.19.6-1-MANJARO 
  Device-1: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  vendor: Dell driver: ath10k_pci v: kernel port: e000 bus ID: 02:00.0 
  IF: wlp2s0 state: down mac: <filter> 
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Dell driver: r8168 v: 8.045.08-NAPI port: d000 bus ID: 03:00.0 
  IF: enp3s0 state: down mac: <filter> 
  Device-3: Qualcomm Atheros type: USB driver: btusb bus ID: 1-8:6 
  IF-ID-1: enp0s20f0u2 state: unknown speed: N/A duplex: N/A mac: <filter> 
  Local Storage: total: 931.51 GiB used: 35.46 GiB (3.8%) 
  ID-1: /dev/sda vendor: Seagate model: ST1000LM035-1RK172 size: 931.51 GiB 
  ID-1: / size: 58.81 GiB used: 12.92 GiB (22.0%) fs: ext4 dev: /dev/sda1 
  ID-2: /home size: 195.86 GiB used: 22.54 GiB (11.5%) fs: ext4 
  dev: /dev/dm-0 
  ID-3: swap-1 size: 12.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda2 
  System Temperatures: cpu: 43.0 C mobo: 42.0 C gpu: radeon temp: 39 C 
  Fan Speeds (RPM): cpu: 0 
  Processes: 180 Uptime: 26m Memory: 7.57 GiB used: 1.62 GiB (21.4%) 
  Init: systemd Compilers: gcc: 8.2.1 Shell: bash v: 4.4.23 inxi: 3.0.27

There's some weird stuff going on in dmesg, but I don't know how to filter through it and paste the safe parts. There's some stuff about PCIe bus error, severity=Corrected type=Physical Layer, badTLP.
And then something about wlps20 and ipv6 that deauth REASON3=DEAUTH_LEAVING, link not ready. This keeps repeating multiple times.
And then there is also some stuff about radeon ring 0 test failed

when you post terminal output, place 3 backtick's ``` before and after posted output.
this link will tell you what info you need to post for others to be able to help you.

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Run through this Guide on Troubleshooting router/wifi issues


The problem sorted out itself, I restarted the router physically, by turning the power off and on and now everything works correctly. Weird

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Not entirely by itself, you played a role here!.. :wink:
First thing to do:

Have fun!

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