WIFI issues
I have an iphone 11 and having this wifi issue where my wifi get connected just fine with a strong wifi signal but the internet just doesn't seem to work. It works for 2-3 min after i am connected to the network then again the same issue continues.
As per my observation it started back in January 2020 when i had to change my Router but i didn't change my internet service provider which means my DNS should be the same that was beforehand.
Every other device in my house works flawlessly over the same network including my two personal computers, my smart TV, 5 other android smartphones.
I did already call the apple support and the lady over the phone told me to connect to my wifi nd gave me an IP address to enter on safari after entering the same the apple website opened it nd she said that its a DNS issue with your internet service provider.
She asked me to ask my internet service provider that if they provide multiple DNS.
But when i did check with my ISP they had no clue about DNS nor such issues.
The measures i took:
Changed the wifi DNS to manual address.
Changed DNS on wifi router page.
Rested wifi network settings
Updated iphone to latest firmware
Multiple occasions of router restarts.
Nothing worked.
Everytime i change DNS it works for some time and then same issue starts.
iPhone 11, iOS 13