T-Mobile Home Internet is not ready for Primetime

JoeFM wrote:

Maybe things are looking up. I just ran a Speedtest last night and the download speed was 400 Mb. This is by far the best speeds since I first signed up, previously never having better than 70 Mb, and for months on end speeds that were inconsistent and never above 30 Mb while having constant dropouts. Crossing my fingers that this will become the standard.

If you are getting a 400 Mb download you are probably connected to an n41 5G signal. From the sound of the behavior you experienced it is quite likely the T-Mobile engineers were in the deployment phase of the n41 band on the tower. With the push to provide services T-Mobile does seem to be pushing equipment deployments and upgrades pretty hard so sure some mistakes can be made or service disruptions due to improvements. If you are connected to an n41 signal source you will see some great speeds. You should confirm the location of the tower with the PCI, physical cell identifier value for the 5G NR signal. If you use cellmapper.net you can probably find the tower your GW connects to. If you have the Nokia it is easy to see the cellular information and identify the PCI value for the 4G and 5G signals. 

In some locations the deployments may not be "ready for primetime" BUT T-Mobile is pushing hard to get the services out there. Where else can you get home internet for $50/month with no contract and no data cap and no additional fees? Once it IS stable it is a really good deal.