CharlzO
Android Expert
I can't send MMS over WiFi at all....
Has been an issue for quite a few people, unable to send MMS while connected to WiFi. Something about the phone not handing off the data part of the MMS back to the network properly. Hasn't affected everyone however, so it's still a mystery to me. Mine works fine here at home (I have a Verizon Network Extender since I don't get service at home). But it's also the only place I use WiFi really.
Do you have a decent cell signal at home for data, when not on WiFi? Do your MMS messages send if you go off WiFi and try sending over the regular network instead, or do they give you fits as well? Stock Messaging app or are you using a replacement like Go SMS? Just trying to narrow it down