Did something change? Or did it just start working? Or maybe i'm not following the thread? Did you end up swapping antennas or was it something in the code?
I'm still at the same point with the lte.connect() function, but Jose said the LTE team is looking at that. I found out from my co-worker that it's possible to hook into the modem UART pins, so I might try throwing some other commands via that tomorrow.