CubeCell HTCCAB01 intermittent connection OTAA mode

Hello, greetings, I need help with the CuveCell HTCC AB01 boards, I am trying to send data to TTN, through a Dragino DLOS8N Gateway, on the US915 frequency, OTAA mode network configuration, the nodes achieve connection with TTN and then they crash, they work fine for a few moments and then they disconnect, they work intermittently.

Can someone tell me, if these HTCC AB01 modules give problems with the OTAA configuration, because it seems that the board is stuck, trying the LoRa connection with the Gateway…

This is the information generated by the node log.
AT Rev 1.3

+AutoLPM=1

+LORAWAN=1

+KeepNet=0

+OTAA=1

+Class=A

+ADR=1

+IsTxConfirmed=1

+AppPort=2

+DutyCycle=30000

+ConfirmedNbTrials=4

+ChMask=00000000000000000000FF00

+DevEui=70B3D57ED005E4D9(For OTAA Mode)

+AppEui=120D516055E5BDA5(For OTAA Mode)

+AppKey=F9839C8DD2EE579650D1C1DD1A154989(For OTAA Mode)

+NwkSKey=15B1D0EFA463DFBE3D11181E1EC7DA85(For ABP Mode)

+AppSKey=D72C78758CDCCABF55EE4A778D16EF67(For ABP Mode)

+DevAddr=007E6AE1(For ABP Mode)

LoRaWAN US915 Class A start!

joining…TX on freq 904300000 Hz at DR 3 power 20 dBm

TX on freq 904300000 Hz at DR 3 power 20 dBm

Event : Tx Done

RX on freq 924500000 Hz at DR 13

Event : Rx Timeout

RX on freq 923300000 Hz at DR 8

Event : Rx Timeout

TX on freq 904100000 Hz at DR 0 power 20 dBm

TX on freq 904100000 Hz at DR 0 power 20 dBm

Event : Tx Done

RX on freq 923900000 Hz at DR 10

Event : Rx Timeout

RX on freq 923300000 Hz at DR 8

Event : Rx Timeout

TX on freq 903900000 Hz at DR 3 power 20 dBm

TX on freq 903900000 Hz at DR 3 power 20 dBm

Event : Tx Done

RX on freq 923300000 Hz at DR 13

Event : Rx Timeout

RX on freq 923300000 Hz at DR 8

Event : Rx Timeout

TX on freq 905100000 Hz at DR 0 power 20 dBm

TX on freq 905100000 Hz at DR 0 power 20 dBm

Event : Tx Done

RX on freq 926900000 Hz at DR 10

Event : Rx Timeout

RX on freq 923300000 Hz at DR 8

Event : Rx Timeout

TX on freq 905300000 Hz at DR 3 power 20 dBm

TX on freq 905300000 Hz at DR 3 power 20 dBm

Event : Tx Done

RX on freq 927500000 Hz at DR 13

Event : Rx Timeout

RX on freq 923300000 Hz at DR 8

Event : Rx Timeout

TX on freq 904700000 Hz at DR 0 power 20 dBm

TX on freq 904700000 Hz at DR 0 power 20 dBm

Event : Tx Done

RX on freq 925700000 Hz at DR 10

Event : Rx Timeout

RX on freq 923300000 Hz at DR 8

Event : Rx Timeout

TX on freq 904900000 Hz at DR 3 power 20 dBm

TX on freq 904900000 Hz at DR 3 power 20 dBm

Event : Tx Done