Yeah I'm done. Took my 6 lines to Verizon. Oh well, I tried T-Mobile. You broke my heart lol.

I am having the same issue in SD.  All members of my family have an iPhone 12 and all of us show 4 bars on the 5G network but we constantly are loosing connections with Apple Music, Maps, Podcasts, texting, to name just a few.  I have been sent new SIM cards from T-Mobile that were suppose to fix the issue and it did nothing.  I have tried switching to LTE but we have the same issue with LTE.  I am not even getting 1.0 Mbps upload speeds.  I wanted to love T-Mobile because the monthly charges were so much lower but I am going to be forced to switch back to Verizon because our phones are not even usable with T-Mobile.  Unfortunately,  all phones are locked until we pay out our obligation, which makes no sense since two of the phones were suppose to be free.   If T-Mobile cannot fulfil their obligation to provide service why am I obligated to payout my contract?  Frustrate in SD where the map shows 5G Ultra in the urban area I live in, but extremely slow speeds.

Cali Cat wrote:

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.

First explanation I have received that makes some sense to me.  They grew too fast. 

Cali Cat wrote:

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.

Found the same symptoms through trial and error in an ex-urban / rural area (including vacation in a dense city last week) .  My wife's older phone works flawlessly on 4G (LTE?), but my newer phone on 5G cannot make or receive calls reliably 5 minutes after a reboot.  I have to switch phone settings back to where I am on an Edge tower to reliably make and receive phone calls.  

Thank you for the explanation.  The "Largest 5G Network" is not quite rolled out to my neck of the woods.  Wish my phone and/ or the towers would auto negotiate down so I could do normal stuff I've expected to "just work" for the last 8 years.

T-MOBILE is a disgrace. Had good 4G service on Sprint with a tower (ONI ID:WA54XC793) ½ a mile from my office and residence. Forced to re-sim and then they shut down the tower, service went to hell. Have to reset all equipment several times a day just to stay connected. Was promised in late July old tower would be re-provisioned by end of August. Just more lies!

Probably listed in terms of service as agreeing not to sue but a class action lawsuit is in order Not sure if TOS will trump knowingly offering for $$$ a service they "know or should have known" are not able to deliver. At stake is public safety most importantly not knowing if you can contact 911 if needed. Regardless a complaint to the State Corporation Commission is in order.

If you live in Virginia search “Communications Company Complaint Form”

@scc.virginia.gov

I have the same issue with new iPhone 13.  I have switched to 4g and back with no change.  Shouldn't have to be manipulating settings to be able to get service when the phone is showing good network service.  I did connect after shutting down the phone and powering it back up.  But again I shouldn't have to jump through hoops to have my brand new phone work.  New to T-mobile and I am wondering if I made a mistake changing carriers.

I just want to add that I've had this issue since I purchased my note 20 ultra 5G. I thought the issue was my phone until I finally found the recommendation to disable n71. That seems to have completely fixed the issue but my speeds and signal are less abundant.

I have the model with 512GB of storage and the max ram which was not cheap. I hope someone from T-Mobile actually checks the forums because this issue is so annoying and apparently there are multiple users across the network experiening it on all different 5G phones. On one hand it's nice to know I'm not alone, but on the other it's disappointing that such a huge issue exists and they are not able to resolve or acknowledge it.  This problem started after the sprint merger for me. Previously I had nothing but great service so I wonder if it just has to do with how they integrated the two networks with their new available spectrum.

I tether; have done so for 10 years. I had connected to Tmobile at 26mbs until last year, page loads went from non existent to on a lucky day 7 mbs. Meanwhile i get Netflicks free. Im moving to another carrier.

Tmobile has a lot of dead zones, and unusable 4g lte service in areas that are listed as 5g Ultra Capacity.  Reps will claim that the areas aren't 5g , have capacity issues, are being modernized or undergoing maintenance.  Sometimes for several years (/sarcasm).  These are go to excuses, and yes, their 'engineers ' have even admitted it as I've caught them in their lies.

so i didn't read all the replies and I have had this issue with both Android and Iphone most recently the Iphone12 pro max(1 year old) and then android is technically last one a S7 plus tab phone was S22plus. Are you all switching off your Wifi buttons when not on your or a known wifi network? Because as my ex the programmer explained that the phones will always try to first  find a wifi signal then use data. So if always "on"but not connected then you are basically throttling your own signal as well as burning through your battery faster. The dead "spots" are the line between moblie data and wifi trying to kick in. Some may already know this, some may not but next time it happens just turn off wifi and wait a few moments to see what happens, possibly reset the phone ot your network by going full airplane mode. But 9/10 this is why for me the other 1/10 is Iphone or Android needs an update. Both systems if its blue in the control panel, its on, whether you are connected or not. To turn off Android completely just press the eifi button, for Iphone go to wifi settings and turn off there, with apple if the button is white, its constantly searching lightly so make sure you completely turn it off.