Openwrt rc3 Xiaomi AX3600 Qualcomm Atheros IPQ8074 802.11ac/ax/n problems

Qualcomm Atheros IPQ8074 802.11ac/ax/n radio in ax mode 160mhz

This wireless network is not working properly.
If you restart the router, it runs for a maximum of 16 hours without any problems and you can log into the network.
After that it is not possible to log into the ax network with 160mhz.
The router needs to be restarted, then it will run again until next time.
Please solve this problem.

Thank you very much