Q: Using iPad 2 on a daily basis. It suddenly went mute and I could no longer watch videos including those on Netflix. Any easy fix to tis problem?

Hello, Rain248. 

Thank you for the question.  The first thing we need to check is if the mute switch is enabled as this could be the sudden cause to no sound with third party applications.  The first article I have attached covers how to adjust this setting.  I would also recommend closing all applications in the multitasking menu and then restart the device.  The steps to process this are in the second and third article. 

iPad: Understanding the side switch

http://support.apple.com/kb/ht4085

iOS: Force an app to close

http://support.apple.com/kb/ht5137

iOS: Understanding multitasking

http://support.apple.com/kb/HT4211

Cheers,

Jason H.