My D2 Delta PX failed to update Aviation Database over wifi

Hello! I would ensure that you have the latest software version for your D2 Delta PX. 

Please also consider the strength and stability of your WiFi network and these steps in the owner's manual (on page 1 of the following owner's manual: static.garmin.com/.../D2%20Delta%20OM=3=8.3x11_OM_Web_PDF=EN-US.pdf) detailing how to update the aviation database: 

Updating the Aviation Database

Before you can update the aviation database, you must create a Garmin® account and add your device. You can view your unit ID on the device information screen (Viewing Device Information, page 35). The aviation database is valid for 28 days at a time and includes worldwide airport locations, navigational aids, and intersection data.

1) Go to www.flyGarmin.com.

2) Log in to your Garmin account.

3) Select an option:

      • Connect your device to a computer using the included USB cable.

      • Connect your device to a Wi‑Fi® wireless network.

4) Follow the on-screen instructions to update the aviation database.

When your device is connected to a Wi‑Fi wireless network, database updates are downloaded automatically overnight.