Ok so I have an issue. I have AT&T service and cannot send a pic/MMS over wifi to my wife's Note 10 plus. When I attach the pic or mms it shows actual size and takes 5 mins to send. When the send completes after 5mins, it actually compresses the image to finally send. When I use cell service and attach it does not compress at all and sends instantly. Now, when I attach a pic/mms to text any other device (iphone or other android) it attaches and instantly compresses and sends over wifi. I did not have any issues with our previous Galaxy 8s. After spending hours with AT&T they said its a samsung issue and suggested I just send over cell service. Samsung support blames AT&T. This makes no sense to me at all. It does not matter what wifi I connect to it will not send mms from note to note but is fine any other device. Any suggestions or is anyone else having this issue?
MMS has to send through the service providers servers. As your phone sends and receives text messages, the phone is working correctly. You will need to pursue a resolution through AT&T.