Wireless card doesn't work properly after WiFi fails

Support Network
1

Hello! It’s my first topic, so please be patient if you spot some bad practices or problems with my post; I’ll check your feedback for future reference.
Now, my issue is: Every once in a while, my WiFi crashes (router / ISP fault). After some time, when the Internet is up again and working properly (I know that because my phone and other devices start to send and receive data), my Manjaro machine gets stuck in this cycle where the wireless card checks for networks, but doesn’t find any. I’ve tried deactivating and activating wireless connection from the System Settings menu, but the result is the same: It looks for wireless networks, unsuccessfully.

My adapter:
Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter

I’m using the rtl8821ce-dkms-git driver.

I’m wondering if anyone else’s gone through the same situation. If you need more info about my setup, please let me know. Thanks!

2

Did you try switching kernel?

3

Can you please run the following command after you experience the issue and post the logs?

journalctl --no-pager -u NetworkManager.service --since "1 hour ago"

You can also use the following journalctl parameters, if you still remember when the issue happened the last time:

journalctl --no-pager -u NetworkManager.service --since "2022-01-15" --until "2022-01-15 03:00"

(the above command prints out the NetworkManager log between 2022-01-15 00:00 and 2022-01-15 03:00)

1 Like
5

Not yet, I’m on 5.15.12-1-MANJARO. My hardware is a bit recent, and with previous kernels the experience was worse. Do you think with 5.16 it will be better? Thanks!

6

Hello! Yep, just happened again, this is the output for the last 10 minutes:

ene 18 10:39:46 hp systemd[1]: Starting Network Manager...
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.0347] NetworkManager (version 1.32.12-2) is starting... (for the first time)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.0348] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 20-connectivity.conf)
ene 18 10:39:47 hp systemd[1]: Started Network Manager.
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.0473] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.0518] manager[0x565298105050]: monitoring kernel firmware directory '/lib/firmware'.
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1170] hostname: hostname: using hostnamed
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1170] hostname: hostname changed from (none) to "hp"
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1174] dns-mgr[0x5652980c2250]: init: dns=default,systemd-resolved rc-manager=symlink
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1182] rfkill1: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:02.2/0000:01:00.0/ieee80211/phy0/rfkill1) (driver rtw_8821ce)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1184] manager[0x565298105050]: rfkill: Wi-Fi hardware radio set enabled
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1184] manager[0x565298105050]: rfkill: WWAN hardware radio set enabled
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1417] Loaded device plugin: NMTeamFactory (/usr/lib/NetworkManager/1.32.12-2/libnm-device-plugin-team.so)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1431] Loaded device plugin: NMWifiFactory (/usr/lib/NetworkManager/1.32.12-2/libnm-device-plugin-wifi.so)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1440] Loaded device plugin: NMAtmManager (/usr/lib/NetworkManager/1.32.12-2/libnm-device-plugin-adsl.so)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1468] Loaded device plugin: NMWwanFactory (/usr/lib/NetworkManager/1.32.12-2/libnm-device-plugin-wwan.so)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1482] Loaded device plugin: NMOvsFactory (/usr/lib/NetworkManager/1.32.12-2/libnm-device-plugin-ovs.so)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1500] Loaded device plugin: NMBluezManager (/usr/lib/NetworkManager/1.32.12-2/libnm-device-plugin-bluetooth.so)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1506] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state file
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1507] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1508] manager: Networking is enabled by state file
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1516] dhcp-init: Using DHCP client 'internal'
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1521] settings: Loaded settings plugin: keyfile (internal)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1564] device (lo): carrier: link connected
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1568] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1574] device (wlan0): driver supports Access Point (AP) mode
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1580] manager: (wlan0): new 802.11 Wi-Fi device (/org/freedesktop/NetworkManager/Devices/2)
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1611] ovsdb: No se pudo conectar: No existe el fichero o el directorio
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.1611] ovsdb: disconnected from ovsdb
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.2633] modem-manager: ModemManager not available
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.2731] device (wlan0): interface index 2 renamed iface from 'wlan0' to 'wlp1s0'
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.2805] manager: startup complete
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.2807] device (wlp1s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
ene 18 10:39:47 hp NetworkManager[515]: <info>  [1642520387.7768] device (wlp1s0): set-hw-addr: set MAC address to 2A:E7:0C:FF:15:FB (scanning)
ene 18 10:39:48 hp NetworkManager[515]: <info>  [1642520388.2649] modem-manager: ModemManager now available
ene 18 10:39:48 hp NetworkManager[515]: <info>  [1642520388.3888] device (wlp1s0): supplicant interface state: internal-starting -> disconnected
ene 18 10:39:48 hp NetworkManager[515]: <info>  [1642520388.3889] device (wlp1s0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
ene 18 10:39:50 hp NetworkManager[515]: <info>  [1642520390.6521] agent-manager: agent[19f14aa2f3e555af,:1.20/org.gnome.Shell.NetworkAgent/120]: agent registered
ene 18 10:39:52 hp NetworkManager[515]: <info>  [1642520392.7940] policy: auto-activating connection 'Familia Camacho' (fb28e1a9-8dbe-4ff5-99e4-dad4bc89e6c9)
ene 18 10:39:52 hp NetworkManager[515]: <info>  [1642520392.7952] device (wlp1s0): Activation: starting connection 'Familia Camacho' (fb28e1a9-8dbe-4ff5-99e4-dad4bc89e6c9)
ene 18 10:39:52 hp NetworkManager[515]: <info>  [1642520392.7954] device (wlp1s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
ene 18 10:39:52 hp NetworkManager[515]: <info>  [1642520392.7957] manager: NetworkManager state is now CONNECTING
ene 18 10:39:52 hp NetworkManager[515]: <info>  [1642520392.7980] device (wlp1s0): set-hw-addr: reset MAC address to 5C:FB:3A:1F:97:71 (preserve)
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2868] device (wlp1s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2873] device (wlp1s0): Activation: (wifi) access point 'Familia Camacho' has security, but secrets are required.
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2874] device (wlp1s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2892] device (wlp1s0): supplicant interface state: disconnected -> interface_disabled
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2909] device (wlp1s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2912] device (wlp1s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2920] device (wlp1s0): Activation: (wifi) connection 'Familia Camacho' has security, and secrets exist.  No new secrets needed.
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2921] Config: added 'ssid' value 'Familia Camacho'
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2921] Config: added 'scan_ssid' value '1'
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2921] Config: added 'bgscan' value 'simple:30:-70:86400'
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2922] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK'
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2922] Config: added 'auth_alg' value 'OPEN'
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.2922] Config: added 'psk' value '<hidden>'
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.3272] device (wlp1s0): supplicant interface state: interface_disabled -> inactive
ene 18 10:39:53 hp NetworkManager[515]: <info>  [1642520393.8164] device (wlp1s0): supplicant interface state: inactive -> scanning
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.2406] device (wlp1s0): supplicant interface state: scanning -> authenticating
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.2434] device (wlp1s0): supplicant interface state: authenticating -> associating
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.2575] device (wlp1s0): supplicant interface state: associating -> associated
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.2697] device (wlp1s0): supplicant interface state: associated -> 4way_handshake
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.3683] device (wlp1s0): supplicant interface state: 4way_handshake -> completed
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.3684] device (wlp1s0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to wireless network "Familia Camacho"
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.3686] device (wlp1s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
ene 18 10:39:58 hp NetworkManager[515]: <info>  [1642520398.3694] dhcp4 (wlp1s0): activation: beginning transaction (timeout in 45 seconds)
ene 18 10:39:59 hp NetworkManager[515]: <info>  [1642520399.8887] dhcp6 (wlp1s0): activation: beginning transaction (timeout in 45 seconds)
ene 18 10:39:59 hp NetworkManager[515]: <info>  [1642520399.8940] dhcp6 (wlp1s0): state changed unknown -> bound, address=2800:484:2a71:4700::8
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6746] dhcp4 (wlp1s0): state changed unknown -> bound, address=192.168.0.28
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6765] device (wlp1s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6828] device (wlp1s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6832] device (wlp1s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6837] manager: NetworkManager state is now CONNECTED_LOCAL
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6851] manager: NetworkManager state is now CONNECTED_SITE
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6852] policy: set 'Familia Camacho' (wlp1s0) as default for IPv4 routing and DNS
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6856] policy: set 'Familia Camacho' (wlp1s0) as default for IPv6 routing and DNS
ene 18 10:40:01 hp NetworkManager[515]: <info>  [1642520401.6921] device (wlp1s0): Activation: successful, device activated.
ene 18 10:40:02 hp NetworkManager[515]: <info>  [1642520402.4832] manager: NetworkManager state is now CONNECTED_GLOBAL
ene 18 10:40:13 hp NetworkManager[515]: <info>  [1642520413.2132] agent-manager: agent[21b6ba79f189a62d,:1.67/org.gnome.Shell.NetworkAgent/1000]: agent registered
ene 18 10:42:50 hp NetworkManager[515]: <info>  [1642520570.8223] device (wlp1s0): supplicant interface state: completed -> disconnected
ene 18 10:42:52 hp NetworkManager[515]: <info>  [1642520572.8878] device (wlp1s0): supplicant interface state: disconnected -> scanning
ene 18 10:43:06 hp NetworkManager[515]: <warn>  [1642520586.0883] device (wlp1s0): link timed out.
ene 18 10:43:06 hp NetworkManager[515]: <info>  [1642520586.0888] device (wlp1s0): state change: activated -> failed (reason 'ssid-not-found', sys-iface-state: 'managed')
ene 18 10:43:06 hp NetworkManager[515]: <info>  [1642520586.0895] manager: NetworkManager state is now DISCONNECTED
ene 18 10:43:10 hp NetworkManager[515]: <info>  [1642520590.0929] device (wlp1s0): set-hw-addr: set MAC address to C2:6C:72:9C:6F:25 (scanning)
ene 18 10:43:12 hp NetworkManager[515]: <warn>  [1642520592.0933] platform-linux: do-change-link[2]: failure changing link: failure 114 (La operación ya se está llevando a cabo)
ene 18 10:43:12 hp NetworkManager[515]: <warn>  [1642520592.0935] device (wlp1s0): Activation: failed for connection 'Familia Camacho'
ene 18 10:43:12 hp NetworkManager[515]: <info>  [1642520592.0954] device (wlp1s0): supplicant interface state: scanning -> interface_disabled
ene 18 10:43:12 hp NetworkManager[515]: <info>  [1642520592.0958] device (wlp1s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
ene 18 10:43:12 hp NetworkManager[515]: <info>  [1642520592.1324] dhcp4 (wlp1s0): canceled DHCP transaction
ene 18 10:43:12 hp NetworkManager[515]: <info>  [1642520592.1325] dhcp4 (wlp1s0): state changed bound -> terminated
ene 18 10:43:12 hp NetworkManager[515]: <info>  [1642520592.1328] dhcp6 (wlp1s0): canceled DHCP transaction
ene 18 10:43:12 hp NetworkManager[515]: <info>  [1642520592.1328] dhcp6 (wlp1s0): state changed bound -> terminated

I did have an internet outage, but it lasted just a few minutes. At this moment, the PC is searching for wireless networks, but doesn’t find any, not even my neighbor’s. I use the 5.15.12-1-MANJARO kernel. As I mentioned in the previous reply, I tried Manjaro a couple of months ago but the experience was worse; I let some updates to came in, and now is working much better, this is the only issue i’ve spotted so far. Thanks for your help!
Edit: The problem persists until I reboot. If i restart the system, it works fine again.

7

Looks like your SSID disappeared. There don’t seem to be any issues with your wlan interface according to this log. Did your wifi come back online after this log extract ends? Do you have more log lines that come after this?