5G Home internet keeps dropping!

I signed up for Tmobile Home Internet 5G service on 9/7/22 and had no problems during the first 2 weeks. Then, on the 3rd week, I started to notice frequent drops in service. where I would get drops between 7:30am to about 7:00PM. It has progressively gotten worse. Today (9/29), I had a total of 10-15 drops. I can no longer make Zoom or VOIP calls as it frequently cuts off during the middle of the calls.

My daily usage is about 15G per day so about 450G/month. I don't think this is is excessive but it appears Tmobile is throttling me now.

Ive spoken to Tmobile several times and I tried all their solutions.

   Power off the device for 1min and power on - Nope.

   Replace the Sagecom Gateway with another one - Nope

   Do a factory reset on Home Gateway device. - Nope.

   Tmobile representative reset the connection from their end - Nope

   We will add more capacity to the tower - Tower is transmitting N71 (600mhz band but low capacity). I am hoping they will add N41 (2.5ghz band with higher capacity). I live about ½  mile away from the tower with direct line of sight so I should be able to receive N41 signals when it become available. Tmobile could not give a ETA for adding N41. I would not hold my breath.

One last observation that has me perplexed. My Gateway is a Sagecom 5688W, I get strong signals (RSRP = -78) but the quality of the signal is poor ((RSRQ = -12) according to Tmobilie. I am going to swap out the Sagecom for the Nokia 5g21 gateway at the Tmobile store to see if it makes any difference. I will add comments after I test this.

I do have a question about the nature of how Tmobile throttles your internet connection. I noticed that the throttling that Tmobile imposes is the following. When in the middle of browsing, getting email, or Zooming, the internet data transfer stops completely but does not actually disconnect. After about 1 minute, it is restored. In fact, I usually run a speedtest after the internet recovers. I get the following result: 125m down and 30 up. Rather than slowing you down, they stop data transfer for about 1 - 3 minutes. This result is worse than slowing your data transfer speed.

In fact, I tested this with another carrier (Verizon hotspot) but it never stopped completely. Rather, data speed was in fact slower.

Anyone have any thoughts on this?