AX3000 firmware upgrade causes internet disconnect on iPad used for upgrade after iPad out of range.

[Cessna182P]

I used my iPad to proceed with the firmware upgrade of the AC3000. It was successful after 2 attempts. But now every time I leave the coverage area of the WiFi, I lose internet connectivity (only on this iPad). All other devices still have connectivity. I always have to reboot the router in order to be reconnected. This is one major pain. I never had issues prior to the upgrade.

[plemans]

1. what router is it? AX3000 is a speed

2. What firmware is on it? 

3. Have you tried forgetting it on the ipad?

4. Or try factory resetting the router and reinstalling it?