1. Robert Chinnis's Avatar
    I spent 30 minutes with Xfinity tech support and they said for my Samsung S9 Plus, with recent Android updates, I must use mobile data to send mms now. It has not been working over WiFi for a few weeks. Why would Android or possibly Samsung force this? It was fine before. I always have mobile data off to save on bills. This makes zero sense to me. Is there any work around?
    10-26-2020 08:04 PM
  2. mustang7757's Avatar
    Hi , welcome to AC!

    You can try this guide.
    https://forums.androidcentral.com/sh...d.php?t=326698


    Also can try resetting network in settings
    10-26-2020 08:51 PM
  3. Robert Chinnis's Avatar
    The WiFi itself is fine. I previously did the reboot and the network reset and still no change. I can get an mms pic through my WiFi from an iphone user but can't send one to them through that same WiFi. I can't send or receive one from the Android user sitting right next to me unless I turn on mobile data. This really sucks. Internet on the phone works just fine.
    10-26-2020 10:52 PM
  4. mustang7757's Avatar
    You using Samsung message app? Does it have chat features rcs?
    Laura Knotek likes this.
    10-26-2020 11:21 PM
  5. Robert Chinnis's Avatar
    Hi - yes I am using the standard Samsung message app. It does have information about a chat feature that I don't use. I accepted terms and conditions there to see if it would help, but it does not. From looking around this may be a Samsung / Android 10 issue. Xfinity tech support said this was part of Android 10 that now requires mms to have mobile data turned on to use it. That would not make sense if I have WiFi connection, in my opinion. Literally the purpose of WiFi is to carry data. I'm wondering if this is part of Xfinity pushing me to use mobile data, which is the only thing they actually charge for with their service.
    10-27-2020 02:37 PM
  6. mustang7757's Avatar
    Hi - yes I am using the standard Samsung message app. It does have information about a chat feature that I don't use. I accepted terms and conditions there to see if it would help, but it does not. From looking around this may be a Samsung / Android 10 issue. Xfinity tech support said this was part of Android 10 that now requires mms to have mobile data turned on to use it. That would not make sense if I have WiFi connection, in my opinion. Literally the purpose of WiFi is to carry data. I'm wondering if this is part of Xfinity pushing me to use mobile data, which is the only thing they actually charge for with their service.
    That is true mms uses data to do picture messages, try Google message app as that can do through wifi .
    ManiacJoe and J Dubbs like this.
    10-27-2020 02:40 PM
  7. mustang7757's Avatar
    Otherwise reset the Samsung message app by long pressing it then tap app info >storage >clear data and force stop it .
    10-27-2020 02:41 PM
  8. Robert Chinnis's Avatar
    Will that delete my old messages?
    10-27-2020 03:07 PM
  9. mustang7757's Avatar
    Will that delete my old messages?
    For a moment then repopulates
    10-27-2020 03:08 PM
  10. Robert Chinnis's Avatar
    Okay thanks. I am worried about losing messages from a friend who passed away. I'll try the Google message app first. Thank you for your replies by the way. Very appreciated!
    mustang7757 likes this.
    10-27-2020 03:10 PM
  11. Robert Chinnis's Avatar
    FYI - Google message app will also not send a pic by text over WiFi only. I'm just calling time of death on my ability to do this. I'll go back to sending pics by email LOL. Thanks for all your help!
    mustang7757 likes this.
    10-27-2020 03:20 PM
  12. mustang7757's Avatar
    Ok , also you have to make sure in Google app it's enabled chat rcs , it kicks after a little time .
    J Dubbs likes this.
    10-27-2020 04:24 PM
  13. mustang7757's Avatar
    When u open the Google message app go in it's settings and has to say connected like my screen shotWhy is mms over WiFi only not working?-screenshot_20201027-162429.jpeg
    10-27-2020 04:25 PM
  14. Robert Chinnis's Avatar
    Okay. It did work after a few tries. Thank you!
    mustang7757 likes this.
    10-27-2020 04:46 PM
  15. mustang7757's Avatar
    Okay. It did work after a few tries. Thank you!
    Great
    10-27-2020 05:07 PM
  16. Robert Chinnis's Avatar
    and then it stopped . I gave in and turned on mobile data. Hopefully this is a kink in the Android push or Samsung software that will be resolved soon. I'll just see how much mobile data it actually uses. For about the past 18 hours I have used 0.02 GB. I set limits on my phones to see when I reach about a half gig.
    10-28-2020 03:00 PM
  17. mustang7757's Avatar
    and then it stopped . I gave in and turned on mobile data. Hopefully this is a kink in the Android push or Samsung software that will be resolved soon. I'll just see how much mobile data it actually uses. For about the past 18 hours I have used 0.02 GB. I set limits on my phones to see when I reach about a half gig.
    Yeah with mms it needs data , Google messages was supposed to do over Wi-Fi
    10-28-2020 03:46 PM
  18. Rukbat's Avatar
    MMS is sent as an SMS message, followed by a file over MMS. The MMS part will work over WiFi, if the data path can be established over mobile data. Sometimes it glitches through, most of the time it doesn't work without mobile data. (That's a future RCS enhancement - WiFi only or even peer-to-peer.)
    Laura Knotek likes this.
    10-29-2020 01:30 PM
  19. ManiacJoe's Avatar
    generic MMS requires mobile data. (RCS is supposed to fix this. As soon as the carriers get their acts together....)

    Some carriers create their own SMS/MMS app that can do MMS over wifi due to them controlling both the app and the server.

    I get around the limitation by going into the Developer Settings menu and turning on the option for "keep mobile data active when wifi is on".
    Laura Knotek likes this.
    10-30-2020 02:53 AM

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