My iPad air 2 won't stay connected to home wifi

I Bought my iPad air 2 a few months ago and it worked perfectly. With a few months of using I noticed that it randomly but rarely kicked me off my home wifi and I'd have to go unplug my modem and wireless router and it was fine. Now it does it everyday and I have to reset it several times a day to get connected to the Internet again. We own several Apple prodcuts and none of them do this except for the iPad. Not sure what to do. Help?