The Xiaomi wifi amplifier keeps flashing yellow light may be due to the following reasons, you can try the following solutions:
Resetting the Amplifier:It could be that there is a problem with the connection of the amplifier to the router. Follow the steps in the instructions and try to set up the Mi WiFi Amplifier again, making sure you follow the correct steps to pair and connect.
Check WiFi Signal Strength:The operating state of the amplifier may be affected by the WiFi signal. Make sure the wifi signal around the amplifier is stable and free from interference. If the signal is weak, try placing the amplifier closer to the router.
Check your router settings:Make sure that the router's wifi function is working, that the password is correct, and that new devices are allowed to connect. Sometimes, shutting down the router and amplifier and then restarting it may also solve the problem.
Update Firmware:Check if there is a firmware update available for the Xiaomi wifi amplifier. Sometimes, the manufacturer may release a new firmware version to fix some issues. Look for the firmware update option in your device's settings.
Factory reset:If the above methods don't work, you can try to restore the Xiaomi wifi amplifier to factory settings. Usually, there will be a small reset button on the device, which is operated according to the method in the manual.
If the above methods still do not solve the problem, it is recommended to contact Xiaomi's customer service or consult the official support documentation for more professional help. There may be some specific faults that require technical support from the manufacturer.