Wifi is Disconnecting - BSNL - DLink-2730U

Hi Guys,

I'm facing a weird problem after resetting the settings of my modem (2730U), I'm using an iPhone 7 and whenever I lock my phone the WiFi disconnects and connects again when I unlock the phone.

- I have checked the settings of my iPhone everything is fine.
- I have tried connecting my iPhone with JioFi and surprisingly everything works fine.

So I think that there is some problem with my D-Link router or maybe with BSNL.

It's not the problem of the router or BSNL. It's a bug in the Apple devices. Check the solution provided by Muji_23 in the Apple forum link below.

Ipad disconnecting from wifi while plugged in i... | Communities

same problem i faced with iPhone-SE , it automatically gets connected to WiFi ....