To troubleshoot your NOOK Glowlight's Wi-Fi connection:
1. Tap the gear icon in the Status Bar to open on the Quick Settings window, tap All Settings, and tap Wireless. Then tap on the checkmark towards the top to turn off your Wi-Fi. Wait for a minute, and then turn on your Wi-Fi. This will refresh the wireless connectivity of your device.
2. If you are still experiencing problems, press and hold the power button for 5-7 seconds until a pop-up message appears, and tap Power Off to completely turn off your NOOK GlowLight™. Wait for a minute or two, then press and hold the power button for 2 seconds to turn on your NOOK GlowLight™.
3. Go to www.nook.com/update to check for any software updates and download the latest update for NOOK GlowLight™. It's easy; just follow the step-by-step instructions on that page.