Kernel 5.14.10: WLAN connection fails

I have a small problem with kernel 5.14.10:
The connection to the WLAN router fails.

inxi -Fza:

           parameters: BOOT_IMAGE=/vmlinuz-5.13-x86_64 root=UUID=21baa059-b0a2-4d63-9220-6a1f533a11a2 rw quiet
           apparmor=1 security=apparmor resume=UUID=e4be566c-9f09-4f73-b427-9c88a7dd29ba udev.log_priority=3
           Desktop: KDE Plasma 5.22.5 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM Distro: Manjaro Linux
           base: Arch Linux
Machine:   Type: Laptop System: HP product: HP Laptop 15s-eq2xxx v: N/A serial: <filter> Chassis: type: 10
           serial: <filter>
           Mobo: HP model: 887A v: 59.11 serial: <filter> UEFI: AMI v: F.16 date: 09/24/2021
Battery:   ID-1: BAT0 charge: 41.7 Wh (99.8%) condition: 41.8/41.8 Wh (100.0%) volts: 12.9 min: 11.3
           model: HP Primary type: Li-ion serial: <filter> status: Unknown
CPU:       Info: 6-Core model: AMD Ryzen 5 5500U with Radeon Graphics bits: 64 type: MT MCP arch: Zen 2
           family: 17 (23) model-id: 68 (104) stepping: 1 microcode: 8608103 cache: L2: 3 MiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 50328
           Speed: 1397 MHz min/max: 1400/2100 MHz boost: enabled Core speeds (MHz): 1: 1397 2: 1397 3: 1397 4: 1397
           5: 1569 6: 1397 7: 1397 8: 1493 9: 1397 10: 1397 11: 1397 12: 1397
           Vulnerabilities: Type: itlb_multihit status: Not affected
           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: Full AMD retpoline, IBPB: conditional, IBRS_FW, STIBP: conditional, RSB filling
           Type: srbds status: Not affected
           Type: tsx_async_abort status: Not affected
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Lucienne vendor: Hewlett-Packard driver: amdgpu v: kernel
           bus-ID: 03:00.0 chip-ID: 1002:164c class-ID: 0300
           Device-2: Luxvisions Innotech Limited HP TrueVision HD Camera type: USB driver: uvcvideo bus-ID: 1-3:3
           chip-ID: 30c9:0035 class-ID: fe01 serial: <filter>
           Display: x11 server: X.Org 1.20.13 compositor: kwin_x11 driver: loaded: amdgpu,ati unloaded: modesetting
           alternate: fbdev,vesa display-ID: :0 screens: 1
           Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2") s-diag: 582mm (22.9")
           Monitor-1: eDP res: 1920x1080 hz: 60 dpi: 142 size: 344x194mm (13.5x7.6") diag: 395mm (15.5")
           OpenGL: renderer: AMD RENOIR (DRM 3.41.0 5.13.19-2-MANJARO LLVM 12.0.1) v: 4.6 Mesa 21.2.3
           direct render: Yes
Audio:     Device-1: Advanced Micro Devices [AMD/ATI] vendor: Hewlett-Packard driver: snd_hda_intel v: kernel
           bus-ID: 03:00.1 chip-ID: 1002:1637 class-ID: 0403
           Device-2: Advanced Micro Devices [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
           vendor: Hewlett-Packard driver: snd_rn_pci_acp3x v: kernel alternate: snd_pci_acp3x bus-ID: 03:00.5
           chip-ID: 1022:15e2 class-ID: 0480
           Device-3: Advanced Micro Devices [AMD] Family 17h HD Audio vendor: Hewlett-Packard driver: snd_hda_intel
           v: kernel bus-ID: 03:00.6 chip-ID: 1022:15e3 class-ID: 0403
           Sound Server-1: ALSA v: k5.13.19-2-MANJARO running: yes
           Sound Server-2: JACK v: 1.9.19 running: no
           Sound Server-3: PulseAudio v: 15.0 running: yes
           Sound Server-4: PipeWire v: 0.3.38 running: yes
Network:   Device-1: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter vendor: Hewlett-Packard
           driver: rtw_8821ce v: N/A modules: rtw88_8821ce port: f000 bus-ID: 01:00.0 chip-ID: 10ec:c821
           class-ID: 0280
           IF: wlo1 state: up mac: <filter>
Bluetooth: Device-1: Realtek Bluetooth Radio type: USB driver: btusb v: 0.8 bus-ID: 1-4:4 chip-ID: 0bda:b00e
           class-ID: e001 serial: <filter>
           Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
Drives:    Local Storage: total: 953.87 GiB used: 49.54 GiB (5.2%)
           SMART Message: Unable to run smartctl. Root privileges required.
           ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Toshiba model: KBG40ZNV1T02 KIOXIA size: 953.87 GiB block-size:
           physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter> rev: HP00AE00
           temp: 44.9 C scheme: GPT
Partition: ID-1: / raw-size: 100 GiB size: 97.87 GiB (97.87%) used: 8.21 GiB (8.4%) fs: ext4 dev: /dev/nvme0n1p7
           maj-min: 259:7
           ID-2: /boot raw-size: 1024 MiB size: 973.4 MiB (95.06%) used: 113 MiB (11.6%) fs: ext4 dev: /dev/nvme0n1p5
           maj-min: 259:5
           ID-3: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%) used: 292 KiB (0.1%) fs: vfat
           dev: /dev/nvme0n1p10 maj-min: 259:10
           ID-4: /home raw-size: 200 GiB size: 195.8 GiB (97.90%) used: 40.85 GiB (20.9%) fs: ext4
           dev: /dev/nvme0n1p8 maj-min: 259:8
           ID-5: /var raw-size: 159.64 GiB size: 156.08 GiB (97.77%) used: 375 MiB (0.2%) fs: ext4
           dev: /dev/nvme0n1p9 maj-min: 259:9
Swap:      Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
           ID-1: swap-1 type: partition size: 16 GiB used: 0 KiB (0.0%) priority: -2 dev: /dev/nvme0n1p6
           maj-min: 259:6
Sensors:   System Temperatures: cpu: 50.4 C mobo: 49.0 C gpu: amdgpu temp: 36.0 C
           Fan Speeds (RPM): N/A
Info:      Processes: 302 Uptime: 3m wakeups: 997 Memory: 14.98 GiB used: 2.13 GiB (14.2%) Init: systemd v: 249
           tool: systemctl Compilers: gcc: N/A Packages: pacman: 1210 lib: 331 flatpak: 0 Shell: Zsh v: 5.8
           default: Bash v: 5.1.8 running-in: konsole inxi: 3.3.08```

With kernel 5.13.xx the WLAN connection works fine.

With kernel 5.14.xx, I can´t browse the Internet and receive Emails (Firefox and Thunderbird).

I just updated to 5.14 but i don’t have any issue yet :thinking: . You installed through the system settings , right ??


I have installed kernel 5.14 through system settings.

With kernel 5.14, the system reports: no devices found - sometimes.

Realtek Semiconductor RTL8821CE 802.11ac PCIe Wireless Network Adapter Also reports it’s not working on a bunch of distros.

I suggest to

  1. install Latest LTS Kernel.


  1. take a snapshot > install Realtek firmware
    AUR (en) - realtek-firmware


  1. take snapshot > try testing if it is an regression.

With kernel 5.10 the Realtek chip is not recognised. So I can´t test that.

the WLAN connection must be fully activated at the router, when the computer boots into desktop.