Can't connect to MMS and dropped service

I have 4 phones on the plan. MMS has not been working since 1/12/24. Error message says "Message not sent: service not activated on network". I called 2 separate times. First time over an hour trying all the basic troubleshooting. Reset the network, cleared the cache, checked mobile data, and so on. They mentioned SIM cards. Not sure how 4 separate cards 1 Samsung, 3 Iphones will all have that problem. He was literally reading his script to himself but out loud. These are all things I did by myself before calling. He consulted with a technical engineer eventually. They claimed Verizon was having a nationwide issue with MMS. I asked 6 friends w/Verizon in my area. No one else had an issue. 

Second call was several hours later.  I spoke with another rep who was just as bad as the first. They are not qualified for tech support, not enough education. I humored her with trying all the same bare minimum troubleshooting tips as the first guy. When it didn't work, she wanted to repeat the same steps over again. Save us both some time and get someone who might be more knowledgeable.  They are human versions of their automated phone system. They just repeat the same thing and you can't get past them.  Over an hour later, she was also giving me the same story that Verizon is the problem. It's been 3 days, I doubt that is the problem. It's also not our individual phones. Xfinity internet has always been an issue for us. While we don't have great cell service most of the time, Xfinity Mobile has never been a problem.  2 of the 4 phones are paid off. Others fairly early in the contract or I would be gone as well from mobile and internet.  Unfortunately, nothing helpful I can pass along that will fix the technical issue, but you are not alone in the frustration!

Hello and welcome to Comcast @user_y5i6rs.

I appreciate you taking time out of your day and want to ensure you’re able to get in touch with an awesome Xfinity Mobile expert to help get this resolved. Due to account security, our options with Xfinity Mobile accounts are very limited. We're unable to perform any device or account specific requests over this platform. Have you tried calling or texting 1 (888) 936-4968, or reached out to our secure online chat at xfinity.com/xfinityassistant/?channel=xMobile where an Xfinity Mobile expert is available 24/7?

Bought two Samsung Ultra 23s December 2, 2024. My wife bought her phone directly from Samsung. I bought from Xfinity. We both had problems immediately with caller ID not showing the phone number, but showing "Restricted." We never knew who was calling. Like many on this thread, there was the circling back and forth between Samsung, Xfinity store and Xfinity mobile support on line. We got the Phone ID resolved. Now my phone will not send MMS attachments. I am getting "Network will not support" error. I have been told to wait 24 hours for the fix. Apparently, my phone is not the only one having the issue. I have read on other posts that ONLY Tier 3 support can resolve the issue. 

You'll probably enjoy my take on this issue. Originally this happened only after Samsung's "OneUI" updates on my phones, but now it's happening intermittently (every few days) when I merely restart my phone: ‎Samsung “One UI” updates disconnect phones from WiFi and mobile networks | Xfinity Community Forum

I don't know how much this has to do with anything, but I was unable to recieve MMS, which I gues includes pictures, including photos and gifs. I was able to send them but not recieve them. I was able to resolve this on the first try when I called Xfinity Mobile cutomer service. The wi-fi was off! I had to make a new password, and the rep helped me with that, and now I am able to recieve the pictures. I have absolutely no training re: smartphones, I have learned by trial and error. I did not get a owner's manual when I bought the phone at an Xfinity store. I realize I can find info online. I did get a call last night from an Xfinity rep who wanted to know why I rated the help I recieved last Thursday and Friday when I spent several hours being passed back and forth from one rep to another to try to find why I am apparently not getting the discount on my residential bill now that I have bought a phone and service from Xfinity. I did get not one, but two ticket numbers, and the rep told me to call them at the end of the week if I have not heard from them yet. Previously I had talked to several Xfinity employees who said I would get a discount on the residential bill when I bought the phone. as of yet that hasn't happened. I suppose it has to do with bundling.

My s23 ultra was 5 months old & my sms app would randomly stop working. I would be in downtown Atlanta & drop all signal & no matter how many times I restarted it until it was ready to get signal again I was outta luck. I finally got a rep on the line who did smart tutor & went into my phone. He then made me aware the dropped signal is due to the antenna, charging port. Sim card port & battery were basically fried. He then checked my apps & I was made aware that I had 23 viruses that came pre-installed all on samsung apps that only they or samsung could remove. My only option was to send my phone to samsung directly who had it for 2 months & after me basically begging to not send that phone back because it's basically refurbished now & I purchased a brand new 1 & it was only 5 months old they said no if they can fix it they have to send it back to me. I have never regretted buying a samsung until this s23 ultra. I can't tell you how many times I honestly considered going to iphone even tho I despise iphones. Lately xfinity customer service has been just as sorry Sadly to say. It took Mr a month to resolve a issue a store rep created & took me threating to go all the way to the owner of xfinity because I was sick of the BS. It was finally resolved tonight. After approximately 40 reps who would never escalate my issue I got 2 that knew exactly what to do & had it fixed it 5 minutes. Seriously pitch a fit & make them check your antenna & all because like I said mine fried in 5 months