Hola, solicito ayuda para este problema que no encuentro solución.
Después de instalar Linux Mint 21.2 y luego de actualizar el sistema a los 2 días dejo de funcionar la conexión a internet. Tampoco funciona la conexion al hot spot de mi celular. Aclaro que tengo en la misma notebook instalado Win 11 y en este no tengo problemas de conexión. Esta computadora es nueva, pero en una anterior me dio ese mismo problema y nunca lo pude solucionar. Uso Linux desde casi sus inicios, no soy experto pero usuario normal. Nunca tuve este inconveniente. Creo debe ser algo del NetworkManager. les paso algunos datos de mi compu con info que recabé.
iznogud@iznogud-IdeaPad-Flex-5-14IAU7:~$ mokutil --sb-state
SecureBoot disabled

iznogud@iznogud-IdeaPad-Flex-5-14IAU7:~$ mokutil --sb-state
SecureBoot disabled
iznogud@iznogud-IdeaPad-Flex-5-14IAU7:~$ rfkill list all
0: ideapad_wlan: Wireless LAN
   Soft blocked: no
   Hard blocked: no
1: ideapad_bluetooth: Bluetooth
   Soft blocked: yes
   Hard blocked: no
2: hci0: Bluetooth
   Soft blocked: yes
   Hard blocked: no
3: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no

iznogud@iznogud-IdeaPad-Flex-5-14IAU7:~$ iwconfig
lo        no wireless extensions.

wlp0s20f3  IEEE 802.11  ESSID:"dugonzi" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: 78:90:A2:31:75:F0   
          Bit Rate=573.5 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=70/70  Signal level=-28 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:58   Missed beacon:0


iznogud@iznogud-IdeaPad-Flex-5-14IAU7:~$ systemctl status NetworkManager
● NetworkManager.service - Network Manager
     Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendo>
     Active: active (running) since Thu 2023-08-17 17:58:58 -03; 6min ago
       Docs: man:NetworkManager(8)
   Main PID: 848 (NetworkManager)
      Tasks: 3 (limit: 18502)
     Memory: 9.5M
        CPU: 236ms
     CGroup: /system.slice/NetworkManager.service
             └─848 /usr/sbin/NetworkManager --no-daemon

ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:03 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:04 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:04 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
ago 17 17:59:04 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [169>
lines 1-21/21 (END)...skipping...

● NetworkManager.service - Network Manager
     Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2023-08-17 17:58:58 -03; 6min ago
       Docs: man:NetworkManager(8)
   Main PID: 848 (NetworkManager)
      Tasks: 3 (limit: 18502)
     Memory: 9.5M
        CPU: 236ms
     CGroup: /system.slice/NetworkManager.service
             └─848 /usr/sbin/NetworkManager --no-daemon

ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305942.9007] device (wlp0s20f3): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305942.9012] manager: NetworkManager state is now CONNECTED_LOCAL
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305942.9076] manager: NetworkManager state is now CONNECTED_SITE
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305942.9078] policy: set 'Auto dugonzi' (wlp0s20f3) as default for IPv4 routing and DNS
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305942.9086] device (wlp0s20f3): Activation: successful, device activated.
ago 17 17:59:02 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305942.9094] manager: startup complete
ago 17 17:59:03 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305943.3463] manager: NetworkManager state is now CONNECTED_GLOBAL
ago 17 17:59:04 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305944.3431] dhcp6 (wlp0s20f3): activation: beginning transaction (timeout in 45 seconds)
ago 17 17:59:04 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305944.3452] policy: set 'Auto dugonzi' (wlp0s20f3) as default for IPv6 routing and DNS
ago 17 17:59:04 iznogud-IdeaPad-Flex-5-14IAU7 NetworkManager[848]: <info>  [1692305944.3530] dhcp6 (wlp0s20f3): state changed new lease
-------.

Agradezco cualquier ayuda.