[ronston kevin]

my phone used to connect to the wifi properly but once the router wasnt connected to the telephone line properly, my IE opened "ADSL link down" and after that my phone doesnt connect to it.. I reset my phone but still it wont connect..

[Harrie-S]

Did you already try below.
Go to Settings
Go to WiFi
Go to Manage
Under Know networks delete this network and add it again

And or reset your router. (again)

Good luck

[pureview_lvr]

Reboot or soft reset your phone.
Or reset router again.same problem here. But it helps me .

[ronston kevin]

i couldnt delete the network cause when i checked it was already deleted on its own

[ronston kevin]

i reset my phone but still its the same..

[Benjamin Myrie]

You need to connect to each one first and delete them while you're connected

[shaikhmuaaz_2010]

Check another if another phone is connecting your wifi or not, may be problem is in your router.
From Lumia 535