Razer Phone 2 USA ATT cant get it working on 4g lte, need settings help!!

So I had the orginal Razer Phone 1 (RP1) since 2017, saw the 399 deal on the new razer phone 2 (RP2) and picked it up direct from razer. My original phone worked great always had 4g lte connection. This new one (RP2) wont connect to 4g lte... I am using the same sim card, same att plan, living in same house. Only shows H+ connection. Anyone have this issue and a possible solution? People say use the secret setings menu: (*#*#4636#*#*) to tweak the preffered network type but I am not sure what to put in there. Shouldnt this newer phone work better than the original? Can someone who knows what the settings should be chime in? I am in the east coast in CT if that matters.