Marshmallow 6.0.1 - No sound in open WiFi notification

[AC Question]

I am having moto x play with marshmallow 6.0.1 version. My phone gives sound notification for sms, WhatsApp message , etc. Phone is OK in all the manner.
Mobile is also giving notification for open wifi in text. But there is "NO SOUND with OPEN WiFi NOTIFICATION" . And I want sound with wifi notification. By which app or system or settings, I can get it ?
Will you please guide me?

 

[dpham00]

Mod Note, I will move this to the Moto x play forum for more visibility