A few days after the apdate to 31......43
Wi-Fi has become unstable.
1 Wi-Fi has never been unstable before on Zenfone 8 flip.
2.At the some time on the Zenfone 7 pro Wi Fi is completely stable.
All the best
Settings -> System -> Reset options -> Reset Wi-Fi, mobile & Bluetooth
Then connect to your router again and see if you notice a difference. Apart from that, please consider backing up your personal data and perform a factory reset of your device.
Thank you very much for advice, but:
1.I reset it several times Wi-Fi..., no effect.
2.I reset several times the phone, no effect.
All the best,