First Option. "you can forget the home network on the phone, then reconnect it to verify the password." Thanks

I just bought my tapo c200. I try to pairing my c200 with my home  maxis fibre wifi. But not connected . I am sure the wifi password is correct (I removed my tablet wifi password and reconnect); I am not using WP3 ; my c200 just put beside my router .

@TapoNoob yes same problem occur last two days