No mobile service

I have terrible cell service where I live, I had Wi-Fi Calling enabled on my i-phone 10.  I have been wondering why it's so terrible - a friend told me that I need to turn off cellular data, then make sure I'm connected near my router, make sure wi - fi calling is enabled - then try calling the # again.  Like magic - the call is much better - he said that the technology it uses is for the router to connect to the Verizon tower instead of using a cell signal to connect to the cell tower.  It worked for me so as long as you have a strong internet connection and download speed - you should be able to get a call out - only if your xfinity Wifi is out - that won't work.  Also, be sure to turn cellular data back on when you leave your wifi connection otherwise you will miss calls.  

I switched from ATT where I had been a customer since the 1990s, to Xfinity mobile.

I received and activated 2 new Samsung S24 FE cell devices/phones.
One of them lost the network, and could not make calls, with a message that the phone was NOT REGISTERED to xfinity's cell network.
I was able to get into the settings and reconnect the network, through the "E Sim".

"E Sims" are non physical SIMS, that used to be physical devices that allowed a cell device to connect and operate on a cell network.
"E" Sim, electronic SIMS could be the problem here with these devices.
Being a non physical SIM it is more susceptible to it's software getting corrupted, and then disconnecting to a cell network.

Today, my other, of the two, Samsung phones lost network registration.  In fact, as I write this I was on a call with xfinity customer "service", who had no answers other than to read the steps they are told to tell customers.  The procedure she wanted me to go through was much more complicated and took more time than the easier method I used to get my other phone back on the network.

My method.
Open the cell phone/device "settings".  On an Android device it is the icon that looks like gears
Select "Connections"

Select "Mobile Networks"
"Select Automatically", turn it OFF

Now, you have the option to turn it back on, and you will likely be connected.

Of, and if not connected, press "Scan Networks".

After you press Scan Networks, you will see "Xfinity Mobile".   Select it.

You should now be reconnected.   You should get a confirmation that you are "Registered on network."


That said, and done, I want to know WHY my phone lost registration, as it did so while the phone was asleep and just sitting there..
When I tried to make a call, I was greeted with the message, that I was not registered to a cell network, and that I could only make emergency calls.

This has not happened to each of my 2 NEW cell phones that  I purchased from Xfinity.
I have to say that with the decades I was with and on ATT and their networks, none of my cell phones/devices every lost network registration.

I have been through the forums here and losing network registration is quite common with xfinity cell service, as there are numerous posts about that over the years.

Also, trying to get to a real person for customer service is an exercise in making oneself angry, and even getting mad at a fake computer voice, pretending to be a person.
Xfinity's AI Assistant is ridiculous, and frankly it is stupid.

It takes nearly 10 minutes of having to deal with constant AI comments that take you in circles.
I had to repeat and repeat that I wanted to SPEAK with a REPRESENTATIVE, numerous times.
Eventually, the system put me on hold where I waited.

A person did answer.  And, that representative did not know any answers to my question, because really, they don't.
They input your problem or question into a computer, then a screen opens and they read some steps that will MAYBE fix the problem you are having.

Well, that's a good thing when a customer wants a problem fixed.
However, when a problem, the SAME problem keeps happening, going through the whole darn routine over and over and over again does NOT address the cause and root of the problem.

Xfinity owners isolate themselves from having to answer to the people, their customers, who actually pay the every increasing rates/prices of the services, while isolating themselves more and more from having to speak to those customers.
And they expect us to say customers, especially for cable and internet services, because they are granted a local and state MONOPOLY due to ancient old legislation, that NEEDS to be changed to STOP favoring "cable" companies, and continually giving them that MONOPOLY.
When you are given the sole and only contract that provide cable and internet to a community, state, or region, then you really don't have to give even good customer service.
If the customers are not happy, so what?   What are our choices?   The great majority of us do not have competitive choices and options for another cable service or another internet provider, except for some who may get ONE other choice.  That other choice will be another monopoly, the ONLY ONE "phone" company that offers similar and same services.  That's it folks.  That's a government, state given monopoly, where our choices are limited, and we pay if want and need those services.  If we don't like it, too bad.