Good signal/bars but no network connection many times daily

I wish I had something different to add but, I'm just confirming that I have the same issue and am thinking about switching back to Verizon. I wanted to love t-mobile but just isn't usable. Like all of you, great signal but no ability to use data.

I can say for the iPhones, but in my experience with Android, and Samsung/Oneplus and LG, 5G "extended range" can sometimes make service worse.  I've actually gone and disabled n71 on 5g as it becomes the weakest link in a chain, especially when 5g is coming from one tower, and LTE is from another.  Depending on your area, you might not have 5g "ultra capacity" for use, which would give you LTE only.

That's pretty much a nice way of stating iPhone 12/13 doesn't always work well with 5g NSA

It looks like most of the folks having this issue (phone and/or home internet) are describing when the cell towers are overloaded with more connections then it can manage. The symptoms are:

• Strong signal but low or no data
• Strong signal but dropped calls
• Restarting your device gives you a brief moment when data works again only to lose it. This is caused by your restart putting your device back to top of the data queue momentarily.

I experience this a lot in both dense cities and remote areas. A good example is a vacation spot. Go during the week and no problems. Go during the weekends and your same phone from the same spot gets little to no data even though the signal strengths is the same as the week.

Unfortunately, the "fix" is for TMO to upgrade such towers and they are. However, they can only upgrade so many on a given day and nobody can tell you when your area will be upgraded. TMO want's to add more capacity so they can bring in more customers. I'm sure the TMO exec is accurately aware that continued overloading will drive customers to other carriers.

My family and I have been having this issue since October 2022! T-Mobile worked great for us until then. We live in an area that shows full 5G coverage. I've made multiple calls over the months. I was told we can get refunded for the number of days the service hasn't worked, but only one time. Being that it happens for a few days to weeks at a time, then shapes up, then acts up again, I'm hesitant because I'm up to over 100 days of not being able to use our phones. Live in Central Texas, everyone I know with AT&T and Verizon always has working service. T-Mobile only keeps us right now because I can't afford to pay off 3 of the lines that are getting paid through a monthly credit promotional. Funny how the "uncarrier" with "no contracts" does their discounts and promotions in such a way that it's essentially the same thing as a contract. Was camping this past weekend out near Ft Hood, and sure enough, only the T-Mobile members had no signal. The world's leading carrier isn't doing a great job right now.

I have been experiencing this same thing off and on for quite some time. In my case though calls don't always go through. So I will have full 5G bars but the internet goes out. When this happens, I try to call my voicemail and it looks like it connects but I don't hear anything. Then it all works again. I have called tech support a few times. The solution is to reset the network settings and reboot. While that helps, the issue reemerges. It is not a fix. I broke down and called tech support again last night… It certainly illuminated things for me.

The rep I spoke with last, I believe Kiel (outsourced most likely), must have thought that I am stupid. He "fixed" the issue by having me set the phone to 4G/3G/2G (essentially prevent the phone from using 5G). THEN this individual tried to tell me that when I go to an area with good 5G connectivity that my phone would connect - nevermind the fact that he had me turn 5G off. Add that -LIE- to the fact that I AM within 5G signal and I was one p-o'd customer. All in all, T-Mobile support is next to absolutely useless (and infuriating). Also, this issue is CLEARLY a 5G issue. The only reason I went out and bought a new phone that supports 5G was due to T-mobile's "push" for 5G.

I have been a customer for just shy of 16 years. That will end soon.

Good to see this has been a known issue for over a year and we're still having the same problems.

Full 5G UC and .12Mbps

Bravo T-Mo. Bravo 

In your case, if you want a 'real' notification/fix, file a complaint through the BBB.  Since T-Mobile has outsourced almost all of its US based support, you'll be getting standard troubleshooting and generic responses.

you might be on the edge of 5G coverage as well.. so you might also try going into your mobile settings and changing it from 5G to 4G..restart the phone and make sure its not pulling in 5G still..if it isnt then go ahead and run it like that for the day and see if the problem persists or if it goes away.

I am also experiencing this issue; it started around September 20. I even did a Factory Reset on my Z Fold3, but it didn't make a difference. 

My co-worker also has T-Mobile, we sit in the same area, but he doesn’t have this issue.

Has T-Mobile find a solution yet?