Okay, so I went back into settings and retyped everything carefully, I had the same settings as Betty although I had tried some different security settings earler as an experiment. And I tried turning off the wifi and turning it back on. It said "checking e-mail" and then "updated 1:18 pm", but still "No Messages". Then I went to my old kindle Fire and it downloaded a mess of messages, lickety split. I often have trouble connecting to verizon online through my laptop, and sometimes my husband also has been shut out on his Ipad, but I've not had any problems on my old Kindle Fire. According to that forum, uninstalling and reinstalling works for a bit. But I'll try that another day as it doesn't seem to be a permanent fix. Probably will have to download another app eventually, though I don't really need to right now.