Hi there and welcome
When you say you are losing reception, are you referring to wifi? Or to the cell network?
Can you please go to Settings, Applications Manager
Go to the list ALL and locate Google Services Framework
Press it and press clear data.
Once done, restart the Zoom and tell me how it now operates please.
What happens when you try to access the Play Store?
ok, go to Settings, Applications Manager, the list All, then Google Play Store.
Press it press clear data
Restart the Zoom and tell me if the play store now opens please