FX30S not reconnecting to the network after removing and re-attaching antenna

we did some testing , removing and plugging the antenna a few times
this is the result , in the end the modem hang up in LE_MRC_REG_SEARCHING and the last report from +crreg is :
+CREG: 3

+CGREG: 3

Does this mean this is a legato problem?

below the full log

at+cgreg=2
OK

+CREG: 1,“FFFE”,“4949579”,7

+CGREG: 1,“FFFE”,“4949579”,7

+CREG: 2

+CGREG: 2

+CREG: 1,“FFFE”,“494216F”,7

+CGREG: 1,“FFFE”,“494216F”,7

+CREG: 2

+CGREG: 2

+CREG: 0

+CGREG: 0

+CREG: 2

+CGREG: 2

+CREG: 1,“FFFE”,“494216F”,7

+CGREG: 1,“FFFE”,“494216F”,7

+CREG: 2

+CGREG: 2

+CREG: 0

+CGREG: 0

+CREG: 2

+CGREG: 2

+CREG: 3

+CGREG: 3

thanks