Hiya, My name is XXXX XXX will be assisting you with your issue today. I will help you to the best of my ability.

Press both Home and Power buttons and hold for about 30 seconds, until Apple logo shows up. Then release both buttons. iPad will restart..

Then check if everything is ok and let me know please

Its actually a very common problem on the Ipad2 to have a stuck volume button

Did the reset work for you?

DO NOT rate my answer until the problem is fixed

No you said rebooting

2 different things

It is very common on the ipad2 to have this problem with the volume button

90% of the time this happens the unit will need to be sent in for repair.

Defective volume buttons are being reported wide spread showing your exact symptoms

No unfortunately not :-(

But I can give you all info to get the job done

Thats the good news

TWO options

1/ Find you nearest apple store using this

http://www.apple.com/buy/locator/

2/ To setup a repair and replacement od possibly the whole unit

https://selfsolve.apple.com/agreementWarrantyDynamic.do

I am very much hoping that your unit is under warranty so this doesnt cost you a penny

Welcome, one more question

Does your ipad2 have a case on it that could be restricting the button?

Just a thought

Ok, just thought id check on that

If you have an apple store near to you, that would be your easiest method

They do accept walkins also, no apt necessary in just about all locations

Ok good. If you have no further questions for me, please rate my answer so I can be compensated for helping you today.

Good luck on the repair or replacement

Thanks very much, sorry for the bad news my friend. Have a good evening!