9.2.0 RPi4 Wi-Fi 5GHz Drops Connection

1st Official Post

    Clean install, no addons. RPi4 4Gb, original power supply, connects to a network, works for 1min, then connection drops and RP4 is not able to reconnect anymore.

    The log

    Router (ZyXEL Keenetic Ultra II, no 2.4Ghz enabled, only 5GHz) log:

    Code
    Фев 12 14:03:15 wmond
WifiMaster1/AccessPoint0: (MT76x2) STA(dc:a6:32:30:19:0a) had associated successfully.
Фев 12 14:03:16 wmond
WifiMaster1/AccessPoint0: (MT76x2) STA(dc:a6:32:30:19:0a) set key done in WPA2/WPA2PSK.
Фев 12 14:04:16 wmond
WifiMaster1/AccessPoint0: (MT76x2) STA(dc:a6:32:30:19:0a) had disassociated by STA (reason: STA is leaving or has left BSS)
    • Official Post

    Are you using the RPi internal wifi or an external wifi?

    If internal, can you try another wifi - say a USB wifi adapter.

    Also can you try ethernet and see if you still get issues.

    As a test can you try Raspbian and see if that is stable.

    After changing country code to US or DE, RPi still drops connecting every one minute, but then it's able to reconnect and obtain an IP, so there is some progress here, thanks :)

    It's all about onboard WiFi. I also have a Tenda U12 dongle (rtl8812au chipset, 2604:0012) which I use with my PRi2 running Raspbian. I would even prefer to use it instead of the onboard wlan, but unfortunately I did not succeed in making it work with LibreElec, despite it detects the adapter:

    Code
    [  239.208563] usb 1-1.3: new high-speed USB device number 5 using xhci_hcd
[  239.299361] usb 1-1.3: New USB device found, idVendor=2604, idProduct=0012, bcdDevice= 0.00
[  239.299383] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  239.299399] usb 1-1.3: Product: 802.11n NIC
[  239.299414] usb 1-1.3: Manufacturer: Realtek
[  239.299429] usb 1-1.3: SerialNumber: 123456

    ...and no wlan1, only onboard wlan0

    Tried

    Code
    LibreELEC:/sys/bus/usb/drivers/rtsx_usb # echo 2604 0012 >new_id

    with no results

    Edited 2 times, last by Zewkin (February 21, 2020 at 8:27 PM).

    Try This

    first install -> Libreelec Addons/Program Addons/Network Tools

    reboot

    logon via ssh and test -> iwconfig

    wlan0 shows up like -> Power Management:on

    then -> nano /storage/.config/autostart.sh

    add -> iw wlan0 set power_save off

    -> save and exit

    -> reboot

    logon via ssh and test -> iwconfig

    wlan0 shows up like -> Power Management:off

    My router's country code was UA, and RPi WiFi completely died after I set UA as PRi country code. It saw no networks, nothing.

    Then I got wired and set PL as country code for both router and RPi, and it finally worked! 11n, 40MHz only, 1x1, but it works! Thanks a lot!

    Anyway the fact LibreELEC does not support WiFi in Ukraine is weird :)