I have same issue,disconnect and reconnect automatically..
Whenever it connects, there is a limited
Dear i am also having A30 and i don't have such issue
this could be your internet try to connect some other wifi device or make a hotspot with someone else's phone and connect to it
i try it but issue remain same
i have a30s never have any issue at all imo this can't be your phone
this issue only in a30