What steps can I take to improve the weak and dropping Wi-Fi signal on my Xiaomi Mi 9?

Steps to Improve Wi-Fi Signal on Xiaomi Mi 9:

1. Reposition your Router: Place your router in a central location and ensure no physical obstructions are blocking its signals.
2. Reduce Interference: Keep your router away from devices that may interfere with its signal, such as cordless phones, microwaves, and other electronics.
3. Update Firmware: Check for firmware updates for both your Xiaomi Mi 9 and router, as updated software often includes improvements for Wi-Fi connectivity.
4. Restart Router and Phone: Power off your router and Xiaomi Mi 9, then turn them back on after a few seconds. This can help resolve temporary issues.
5. Forget Network: On your Xiaomi Mi 9, go to Wi-Fi settings, forget the network causing problems, and reconnect to it to start afresh.
6. Reset Network Settings: Resetting network settings on your Mi 9 can sometimes solve Wi-Fi problems. Go to Settings > Network & internet > More > Reset Wi-Fi, mobile & Bluetooth.
7. Use a Wi-Fi Extender: Install a Wi-Fi extender or repeater to amplify the Wi-Fi signal and increase coverage range in your home or office.
8. Disable Battery Optimization: Prevent the system from optimizing the Wi-Fi connection by excluding the relevant app from battery optimization settings. Go to Settings > Battery & performance > Choose apps > Select the Wi-Fi app > Turn off battery optimization.
9. Perform a Factory Reset: If all else fails, consider performing a factory reset on your Xiaomi Mi 9, but make sure to backup important data before proceeding.

By following these steps, you can potentially improve the weak and dropping Wi-Fi signal on your Xiaomi Mi 9.