twilite2000,
It sounds like you're describing the behaviour that occurs when you have an MMS pending but you're currently using a WiFi connection - you have to have a mobile data connection in order to get that download to progress.
You can leave both mobile data and WiFi enabled if you like and it will just default to using WiFi unless something like an MMS comes in - if that happens, you'll briefly see both the WiFi icon and the 4G icon show up in the Notification bar.
Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM -0.001 using Tapatalk 2
Thank you so much. It waa exactly what was wrong, and easily fixed