What could be the reason behind the weak and unstable Wi-Fi connection on my Xiaomi 12S Ultra?

There could be several reasons behind the weak and unstable Wi-Fi connection on your Xiaomi 12S Ultra:

• Distance: The distance between your device and the Wi-Fi router can impact the signal strength. Make sure you are within a reasonable range.
• Obstacles: Physical objects like walls, furniture, and appliances can interfere with the Wi-Fi signal. Try adjusting the router's placement for better signal reception.
• Interference: Other electronic devices, such as microwaves, cordless phones, and baby monitors, operating on the same frequency range as your Wi-Fi, can cause interference. Consider keeping them away from the router or switching to a less crowded Wi-Fi channel.
• Network Overload: If multiple devices are connected to the same Wi-Fi network, it can lead to a slower and less stable connection. Limit the number of devices or consider upgrading your internet plan.
• Outdated Router or Firmware: Ensure that both your router's firmware and the device's software are up to date. Manufacturers often release updates to improve performance and stability.
• Network Congestion: During peak hours, when many people are using the internet, the network may become congested. This can slow down your Wi-Fi. Consider using your Wi-Fi during off-peak times.

If the issue persists, it is recommended to contact Xiaomi support or consult a professional for further assistance.