Wifi issue

i am facing wifi connection issue to connect to my home wifi. initially for few day i can connect to my home wifi without any problem. after few days it cannot connect at all to my home wifi. i have used the wifi repair apk, wifi fix apk trying to fixed it. and even factry reset the phone, but still cannot connect to my home wifi. i belive some file must be corrupted. my family member do not have any problem conneting to the wifi

i have no problem to connect to other wifi hot spot. workplace etc.

any solution can offer. i use king root to root my phone