Wifi connected but ‘no internet’
Hi all, so I’m using an oppo a91 phone, android 11.
I keep randomly losing my internet connection when on the wifi. It doesn’t lose the connection as if I was too far away, it stays connected but with with a subtitle that just says ‘no internet’. It doesn’t even switch to mobile data. And all I need to do is just disconnect and reconnect the wifi on the phone, and it works again. But it keeps reoccurring. I tried resetting the phone to factory settings and even brought it back to the shop for repair, where they say they changed the phone’s mother board. No change. Is there another hardware problem that can be causing this? Or is this something else? Basically looking to know if it’s worth bringing it back for repair again if they already changed the mother board, or if it’s a waste if time.
No problem when using mobile data on that phone instead of wifi, no problem with other devices on the same wifi network.
Any help is appreciated