AR750 reconnects every 5 min

I've been using my glinet with openwrt (not stock) for months. In this new house it seems it can't keep the connection stable to the main router provided by the landlord.

I have the latest from

With openwrt non-stock in logread I see:

Sun Oct 24 10:13:18 2021 daemon.notice wpa_supplicant[1505]: wlan0: SME: Trying to authenticate with <x> (SSID='common' freq=2462 MHz)
Sun Oct 24 10:13:18 2021 kernel: [ 4312.516061] wlan0: authenticate with <x>
Sun Oct 24 10:13:18 2021 kernel: [ 4312.534827] wlan0: send auth to <x> (try 1/3)
Sun Oct 24 10:13:18 2021 kernel: [ 4312.643205] wlan0: send auth to <x> (try 2/3)
Sun Oct 24 10:13:19 2021 kernel: [ 4312.751195] wlan0: send auth to <x> (try 3/3)
Sun Oct 24 10:13:19 2021 kernel: [ 4312.863188] wlan0: authentication with <x> timed out
Sun Oct 24 10:13:19 2021 daemon.notice wpa_supplicant[1505]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="common" auth_failures=3 duration=30 reason=CONN_FAILED

it can't connect.

My computer can directly connect to that common wifi.
There are 4 access points with the same name and password on different channels, could this be an issue? I lock by BSSID too but it does not fix the issue.

The date-time is off and I set it correctly by date -s ... (because the router can't reach any ntp server of course).

If I use glinet stock, it disconnects and reconnects every 5 minutes.

I have 3 glinet and all of them have this same issue here

Can I provide logs or other details to have some more clarity and know what is happening?

sorry... is this the right forum to ask for help

initramfs' aren't meant for writing to flash ....