Lumia 620 wifi timeout issue

[majdi suliman]

so in my nokia lumia 620, i ticked the box in wifi>advanced> keep wifi on when screen times out
but my lumia still seems to disconnect with my wifi home network when it times out, this started happening recently when i reseted my phone

help me please
2nd post =D

 

[PxuLL]

Turn WiFi off, hold volume down and power button till it resets then turn on WiFi.