How can I get MMS working on my Nexus 5?

[theamaxingblob]

MMS not working correctly

My Nexus 5 on T-Mobile hasn't been sending or receiving MMS messages recently. I'm running stock Lollipop 5.1 and I've tried three texting apps so far (Messenger 1.3.030, Hangouts 3.2.91698097, and Textra 2.32) and none work. When sending pictures in Hangouts, I get an error saying "MMS cannot be stored," but I have plenty of data and free space left on my phone. In other apps, sending pictures just doesn't work at all. Receiving pictures worked in all apps except Hangouts. There's no problem with using data on my phone to look at and upload pictures online. I've tried restarting, clearing the cache, clearing app data, and rebooting to safe mode. Does anyone have any idea what might be wrong and how to fix it?
Here's a screenshot of a conversation with myself consisting of me trying to send a picture to myself

 

[DLK1]

Re: MMS not working correctly

Maybe T-Mobile has a problem on there end. Or you may try uninstall your messaging app, then reboot your device and then reinstall the app, see what that does for you.

 

[theamaxingblob]

Re: MMS not working correctly

I've already tried uninstalling, restarting, and reinstalling. No luck, but thanks for the suggestion.

 

[theamaxingblob]

Re: MMS not working correctly

I fixed it! I had the Hola launcher installed, uninstalling that and all of the other Hola software seems to be what fixed it.

 

[DLK1]

Re: MMS not working correctly

Glad you got thing worked out. Happy MMS'ing.