I decided to work through the troubleshooting page, and resetting my APNs to default seems to have worked for now. (Settings, Cellular Network Settings, Access Point Names).

In there, I had two entries, Cricket (my provider) and Internet. The Cricket entry looked more or less correct when I reviewed, but when I did Reset to Default, the Internet entry went away, and the Cricket entry's parameters changed dramatically.

Multimedia messages not downloading #2976. Closed Arilkahn opened this Issue Apr 13, 2015 27 comments. MMS download failed! Debug log: https. My Mobile Data was turned off. I guess I can only get MMS on Mobile data and not WifI also. This comment has been minimized. Sign in to view.

For example, items were pointing at Cricket domains (proxy.cricketwirelss.com) prior to the reset, but AIO ones (proxy.aiowireless.com) after. AIO was the ATT MVNO from ATT that was merged with Cricket when ATT bought Cricket, so not sure where those settings originally came from, but it's working now.

Error Downloading Mms

I'll be interested to see how long this lasts, though. I've had ups and downs with Signal's MMS implementation where it's worked, then not, then did. This really needs to be figured out to gain mass adoption. I've been telling people 'Signal's so easy, I have my mom using it!', but I'm not moving anyone else to the platform until that statement is true again.