** THE FIX FOR THE 3G fallback with no recconnect **
You need your device MSL#
(once obtained)
dial ##data#
select LTE
EDIT
Type MSL
I changed the LTE scan timer from 5 to 2.
You can also arrange your band priorities eg* mine,41,25,26
This worked for me. I then walked deeper into my home and lost B26; fell back to 3G- and had reconnected to LTE within a minute or two.
Your welcome