Gpy Lte RCC TOP FSM -> CONNETTED but never reach ...attached!

[Mattia Perissinotto]

Hello guys,
I have a strange behavior on my Gpy lte.attach() function. After a while the gpy result with this FSM table (...that seem nice :) ):

+--------------------------+--------------------+
|            FSM           |        STATE       |
+--------------------------+--------------------+
| RRC TOP FSM              |CONNECTED           |
| RRC SEARCH FSM           |CAMPED              |
| RRC ACTIVE FSM           |CONNECTED           |
| PMM PLMN FSM             |NORM_CAMPED         |
| EMM MAIN FSM             |NULL                |
| EMM AUTH FSM             |NULL                |
| EMM CONN FSM             |EMM_DETACHED        |
| EMM TAU FSM              |NULL                |
| EMM TEST FSM             |NULL                |
| ESM BEARER FSM           |BEARER_NULL         |
| SMS MT FSM               |IDLE                |
| SMS MO FSM               |IDLE                |
| LPP FSM                  |IDLE                |
| HP MAIN FSM              |IDLE                |
| HP USIM FSM              |READY               |
| HP SMS MO FSM            |IDLE                |
| HP SMS MT FSM            |IDLE                |
| HP CAT FSM               |IDLE                |
+--------------------------+--------------------+

but the next FSM table shows | RRC TOP FSM DISCONNECTING| and it never reaches the "...attached!" state.
What I notice is that the EMM MAIN FSM and EMM AUTH FSM are both NULL.
Any idea on what could it be??

Thank you very much in advance!!
Ciao!

[Yusuf BAYLAV]

Dear Mattia,

I hope you are doing alright.

Have you checked out HERE?

Have a nice one,

KR,

Yusuf BAYLAV

Solutions Architect Evangelist [at] pycom