Hi, stessler.
Thank you for visiting Apple Support Communities.
I understand you are experiencing and issue with your iPad Air disconnecting from your Wi-Fi network. Intermittent issues can be difficult to troubleshoot, but I would recommend going through the troubleshooting steps in the first article below. I would also suggest making sure you your router firmware and the settings have been optimized per the second article below.
If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network
Recommended settings for Wi-Fi routers and access points
Cheers