My wireless disconnects constantly - mediatek Mt7921e

Question

On Kubuntu 21.10: PCIe WiFi card, after many attempts to get the driver loaded and the adapter recognized I experience loops trying to connect (actually unable to open any page after connecting briefly and disconnecting). Sometimes it works briefly.

$ lspci -nnk | grep 0280 -A3
03:00.0 Network controller [0280]: MEDIATEK Corp. Device [14c3:0608]
        Subsystem: MEDIATEK Corp. Device [14c3:0608]
        Kernel driver in use: mt7921e
        Kernel modules: mt7921e
    gianluca@gianluca-HM90:~$ sudo dmesg | grep mt7
    [sudo] password for gianluca: 
    [    4.665793] mt7921e 0000:03:00.0: enabling device (0000 -> 0002)
    [    4.665958] mt7921e 0000:03:00.0: disabling ASPM  L1
    [    4.665994] mt7921e 0000:03:00.0: ASIC revision: 79610010
    [    4.745178] mt7921e 0000:03:00.0: HW/SW Version: 0x8a108a10, Build Time: 20211014150838a
    [    5.004018] mt7921e 0000:03:00.0: WM Firmware Version: ____010000, Build Time: 20211014150922
    [    5.030282] mt7921e 0000:03:00.0: Firmware init done
    [    7.367478] mt7921e 0000:03:00.0 wlp3s0: renamed from wlan0

$ lspci -nnk | grep 0280 -A3
03:00.0 Network controller [0280]: MEDIATEK Corp. Device [14c3:0608]
        Subsystem: MEDIATEK Corp. Device [14c3:0608]
        Kernel driver in use: mt7921e
        Kernel modules: mt7921e
gianluca@gianluca-HM90:~$ cat /etc/NetworkManager/conf.d/*
[connection]
wifi.powersave = 2
gianluca@gianluca-HM90:~$ sudo dmesg | grep mt7
[sudo] password for gianluca: 
[    4.621365] mt7921e 0000:03:00.0: enabling device (0000 -> 0002)
[    4.621499] mt7921e 0000:03:00.0: disabling ASPM  L1
[    4.621533] mt7921e 0000:03:00.0: ASIC revision: 79610010
[    4.705334] mt7921e 0000:03:00.0: HW/SW Version: 0x8a108a10, Build Time: 20211014150838a
[    4.964104] mt7921e 0000:03:00.0: WM Firmware Version: ____010000, Build Time: 20211014150922
[    4.990530] mt7921e 0000:03:00.0: Firmware init done
[    7.325818] mt7921e 0000:03:00.0 wlp3s0: renamed from wlan0

$ nmcli d
DEVICE           TYPE      STATE        CONNECTION 
eno1             ethernet  unavailable  --         
enp4s0           ethernet  unavailable  --         
enxf01e341f94c3  ethernet  unavailable  --         
lo               loopback  unmanaged    --         
gianluca@gianluca-HM90:~$ sudo dmesg | grep wlp
[sudo] password for gianluca: 
gianluca@gianluca-HM90:~$ 

$ sudo dmesg | grep mt7
[sudo] password for gianluca: 
[    4.604185] mt7921e 0000:03:00.0: enabling device (0000 -> 0002)
[    4.605051] mt7921e 0000:03:00.0: disabling ASPM  L1
[    4.605153] mt7921e 0000:03:00.0: ASIC revision: 79610010
[    5.679912] mt7921e: probe of 0000:03:00.0 failed with error -110

$ sudo dmesg | grep 03:00
[sudo] password for gianluca: 
[    0.348217] pci 0000:03:00.0: [14c3:0608] type 00 class 0x028000
[    0.348266] pci 0000:03:00.0: reg 0x10: [mem 0xe0300000-0xe03fffff 64bit pref]
[    0.348309] pci 0000:03:00.0: reg 0x18: [mem 0xe0400000-0xe0403fff 64bit pref]
[    0.348352] pci 0000:03:00.0: reg 0x20: [mem 0xe0404000-0xe0404fff 64bit pref]
[    0.348483] pci 0000:03:00.0: supports D1 D2
[    0.348483] pci 0000:03:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    4.713857] mt7921e 0000:03:00.0: enabling device (0000 -> 0002)
[    4.714308] mt7921e 0000:03:00.0: disabling ASPM  L1
[    4.714386] mt7921e 0000:03:00.0: ASIC revision: 79610010
[    5.792318] mt7921e: probe of 0000:03:00.0 failed with error -110