Whatsapp message not going

[AC Question]

I have samsung s4 mini phone and sharing internet from laptop which has broadband internet. I am receiving messages in Whatsapp but when I send, it is not going. Kindly let me know the solution.

 

[AndroidProf]

Since this is an app related problem, I am going to post the official solution to the problem as posted by the Whatsapp team.
WhatsApp FAQ - Why cant I send or receive messages on WhatsApp?

The best option in the thread is to reinstall the app. However it can also be due to the fact that perhaps the whatsapp servers are down in your area (country).