Wifi won't turn on after using xender, Unless phone restarts

Question 

Device: Samsung Galaxy Grand Duos (gt-19082)

Current ROM: CM13.O Unofficial port.


After using a Wifi file transfer app like Xender(turns my hotspot ON)
when I try to turn ON wifi, the toggle goes gray(unresponsive). The problem persists unless I restart the phone.



I am experiencing this problem from way back while I had CM12. Now I have upgraded to Marshmallow.


— Abhishek K | Sources

Answer

At last the problem got solved.



I had to backup all my data, do a hard reset.



I flashed with a new version of Cyanogenmod, and then with nano Gapps.
And a full reset after flashing it with Gapps.



After reboot, Reinstalled all apps from backup, and the problem was solved, wifi works well now.


— Abhishek K | Sources

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