Unable to connect OneplusX android device to wifi 2.4Ghz N

Installing and Using OpenWrt
1

I got back an old OnePlus X phone, rooted, with Android 13. It support only wifi 2.4Ghz. Was connecting fine on other non-openwrt routers. I tried to connect it with Openwrt 23 router, but get this error in the log:

Wed Jul  2 19:39:29 2025 daemon.info hostapd: wl0-ap0: STA c0:...59 IEEE 802.11: authenticated
Wed Jul  2 19:39:29 2025 daemon.info hostapd: wl0-ap0: STA c0:...59 IEEE 802.11: associated (aid 2)
Wed Jul  2 19:39:29 2025 daemon.notice hostapd: wl0-ap0: AP-STA-POSSIBLE-PSK-MISMATCH c0:...59
Wed Jul  2 19:39:30 2025 daemon.notice hostapd: wl0-ap0: AP-STA-POSSIBLE-PSK-MISMATCH c0:...59
Wed Jul  2 19:39:31 2025 daemon.notice hostapd: wl0-ap0: AP-STA-POSSIBLE-PSK-MISMATCH c0:...59
Wed Jul  2 19:39:32 2025 daemon.notice hostapd: wl0-ap0: AP-STA-POSSIBLE-PSK-MISMATCH c0:...59
Wed Jul  2 19:39:38 2025 daemon.info hostapd: wl0-ap0: STA c0:...59 IEEE 802.11: deauthenticated due to local deauth request

Since it is a authentication issues I tried every other encryption option, change also Cipher but it will not work. It will only connect if i choose No Encryption (Open Netowrk). Even with this, websites in the browser (and few apps) will not connect online anyway

Any idea what to do?

3

What is "rooted with android 13" when last supported was android 6 10 years ago on that device?

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
grafik
Remember to redact passwords, MAC addresses and any public IP addresses you may have:

ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
4

Wrong password, I forgot I changed it from the one I usually use on wifi ... stupid

for the websites and apps to connect correctly I had to update BitGapps

6

mtu fixup works starting from openwrt 24