@Venkadesh 

Hi,
Typically, the Tapo cameras will reconnect to the same Wi-Fi network after rebooting. If the camera can't connect successfully, maybe the router does not respond to its connection request, or the case is related to the router's settings.

You can check if the following steps will help:
    1. Disable the Smart Connect function on the router if it has.
    2. Set Different Wi-Fi names for 2.4GHz and 5GHz Bands.
    3. Set the wireless security type to WPA2-PSK only.

Best Regards