MMS sending and receiving issues

Outside of downloading a third-party texting app (i.e. Textra), there's really no other solution.  I can't stand it.  It drives me nuts on my Galaxy s10+.  I don't understand what the issue is. 

I switched from Verizon to Xfinity in September.  I have had no problems with the default Messages App, until December 28th, when my mobile plan updated.  I can no longer send or receive MMS messages, I have proof I could on December 27th, the last day of my monthly plan, but not since new month started.  I've tried turning on mobile data, turning off wifi, clearing messsages cache and data, to no avail.  

I have had similar issues since switching from Cricket to Xfinity Mobile within the last month. Bought a new Samsung Galaxy A70 thru Xfinity Mobile at the time of the switch. Everything has been great except for this VERY inconvenient/frustrating issue with MMS. It doesn't happen ALL the time, but group MMS messages very often get hung up and don't download. Lately when it's been happening, if I disable the WiFi, the messages come through right away. This also happens if I'm attempting to send a picture and it just sits their "sending". As soon as I turn off the WiFi, it goes right through.

I've tried dozens of suggestions from other threads. I've had this issue occur in Google Messages, Samsung Messages, Textra, and now in Verizon Message+. 

I would really appreciate if somebody from Comcast Support could chime in here and let us know if any progress has been made on this issue. From what I have read, there definitely seems to be an issue between Xfinity Mobile and Samsung phones in general. 

@Comcast_Support 

This issue seems to be fixed now, at least for me on my Galaxy S9. I can now send MMS messages, including both images and group messaging, over WiFi withdata turned off or on. I tried this on Android Messages, Textra, and Samsung Messages with the same result. Android Messages appears to be supporting RCS features also, but I do not typically use that app -- or at least not yet.

Thanks for the input. Did you notice if you received an update or anything before it started working correctly? 

I did not notice any OS updates. I am currently on the December 1 patch, and have been for about a month. I had messages fail to send while WiFi was turned on last week, but they send now.

Hello everyone,

I posted information regarding MMS on another one of the threads and wanted to provide the info here as well.

When sending MMS and using the native texting app for your device, you’ll need to have cellular enabled and Wi-Fi disabled.  This only applies to sending actual data files such as pictures, audio, gifs, etc.  This does count towards the monthly data consumption for the service line.

Any actual text message that include letter characters, words, phrases, sentences, and paragraphs remain free of charge.

It may be that a 3^rd party app will be a way around the cellular signal requirement for MMS.

As I’ve investigated this further, it seems that Android 9 eliminated the option to send MMS without needing a cellular connection.  I am looking further into this detail.

Thanks again for continuing a very useful conversation and knowledge sharing.  I’ll check back in with any new developments.

Sincerely,

Chris             

I have been having this same issue with all 3 of my Samsung s8 phones. And..coincidentally..since they just became paid for, all 3 of my phones are also automatically disconnecting WiFi automatically without permissions. I had to go into all 3 phones and change the xfinity app settings to request approval before cutting off the wifi. NOW i receive a notification about every 15 to 20 minutes asking to cut off my wifi....reallly?!? In addition to not being able to send pics/mms messages unless using data. It was stated that this is an Android problem however I just purchased an Iphone 7 for my daughter in December...GUESS WHAT..hers has the same issue sending MMS messages and photos...I dont think its an android problem, I think its an Xfinity problem.. easy way to rack up data fees. 

This is also happening on the Galaxy S10E (3rd party messaging app or not) and this level of service is completely unacceptable.  Sending a picture over wifi is a basic function of a phone and a mobile network, the fact that it takes data to send a picture is even more unacceptable.  Is there a timeline for a fix or is this how xfinitys network will operate going forwared?  I just switched but i will totally go back to my previous carrier if this isn't given the attention it deserves.