Slow 4G connection only, but only sometimes -- SOLVED

New data:

Wife got home with ere Galaxy GS9 and I tested with it - turns out - as you said - cellmapper is out of date which is why I could not find the cell towers the T-Mobile CAN was finding.

They are ALL on the same physical tower - the 0.7 miles away tower through a TON of heavy woods - but then only Line-of-sight (except for woods) cell tower I have anywhere near.

in addition to the 12,66 it says in cellmapper, it has b2, b41 and b71.

So that accounts for every connection the can has made from anywhere in the house. and the PCI’s match and the cellmapper cell identifier when I could get a phone to give it to me.

Again, to describe my situation - imagine a canyon (Atlanta is hilly), and I live 2/3 way up the canyon - and down the canyon is basically straight west.

And I have NO west windows.

So the North and Sorth, west corner windows are the best available and where I get the best signal - EVEN in the basement, (which again, surprises the heck out of me).

so - if I come to a point of needing it - mounting a MIMO on the west side of the house - 3 stories up - should actually give me a SUPER signal … I should probably do that sometime before I can’t climb a 32 ladder anymore ...

as for other matters - not quite technical ...

I agree totally on the "tone", iTineralot - in fact, I have ALWAYS for well more than a decade got prompt and helpful response from t-mobile service.  And I try not to comment on forums (and I don't do social media), unless I have something to "add" to the conversation.  I have not bothered t-mobile this time, since I knew this was basically brand new with them - and the poor service call folks were probably covered up. 

I don’t comment “too” much about the limited S/W -because I am hoping that gets better - and the cell towers get better, etc. 

I don’t have an Apple anything - almost everyone else in my extended family does - and I am so fed up with M$ - that as soon as my current Dell Laptop finally dies (it is only 2.5 years old and the screen is “separating”), I think I will finally get a MacBook.

The problem is ALL the S/W I have built up (and written) over the years for Windoze.