I was able to monitor the following behavior:
After successful connection to PS network (timestamp 18170) the module disconnects from the network after ~8s (timestamp 26898). After another ~25s registration is denied (timestamp 50314), after another 2s it is registered successfully (timestamp 52347). Then sending and receiving data works without problems!
Any idea what causes this strange behaviour or how to solve it?
9816 command: AT+CGMM
9818 message: AT+CGMM
9818 message: BG95-M2
9819 message: OK
9819 LTE-M modem started successfully
9819 command: ATE0
9821 message: ATE0
9821 message: OK
9822 command: AT+QSCLK=0
9826 message: OK
9828 command: AT+QICFG="dataformat",1,1
9829 message: OK
9831 command: AT+QICFG="viewmode",1
9832 message: OK
9834 command: AT+QICFG="recvind",1
9835 message: OK
9972 command: AT+QCFG="iotopmode",0,1
9974 message: OK
14115 message: OK
18112 command: AT+QURCCFG="urcport","uart1"
18113 message: OK
18115 command: AT+CPIN?
18117 message: +CPIN: READY
18118 message: OK
18118 command: AT+CIMI
18121 message: <cimi>
18121 message: OK
18122 command: AT+CREG=0
18123 message: OK
18124 command: AT+CEREG=2
18126 message: OK
18126 command: AT+COPS=0
18134 message: OK
18135 command: AT+CPSMS=0
18137 message: OK
18139 command: AT+CEDRXS=0,5
18140 message: OK
18144 command: AT+QICSGP=1,1,"iot.1nce.net","","",1
18145 message: OK
18146 command: AT+CEREG?
18149 message: +CEREG: 2,5,"361A","1BE4E02",8
18150 message: OK
18151 command: AT+CREG?
18153 message: +CREG: 0,5
18153 message: OK
18154 command: AT+QNWINFO
18159 message: +QNWINFO: "eMTC","26201","LTE BAND 20",6400
18159 message: OK
18161 command: AT+QENG="servingcell"
18165 message: +QENG: "servingcell","SEARCH"
18166 message: OK
18167 command: AT+CEREG?
18170 message: +CEREG: 2,5,"361A","1BE4E02",8
18171 message: OK
18171 command: AT+CREG?
18173 message: +CREG: 0,5
18174 message: OK
18175 command: AT+QNWINFO
18180 message: +QNWINFO: "eMTC","26201","LTE BAND 20",6400
18180 message: OK
18182 command: AT+QENG="servingcell"
18186 message: +QENG: "servingcell","SEARCH"
18186 message: OK
26898 message: +CEREG: 2
50314 message: +CEREG: 3
52347 message: +CEREG: 5,"B0F8","C4B302",8
78186 command: AT+QIACT=1
78188 message: OK
78192 command: AT+QIOPEN=1,1,"UDP","10.66.33.117",5683,0,1
78193 message: OK
78197 command: AT+QISENDEX=1,<12 bytes of data>
78197 message: +QIOPEN: 1,0
78199 message: SEND OK
78842 message: +QIURC: "recv",1,4,70006C6C
88203 command: AT+QISENDEX=1,<12 bytes of data>
88205 message: SEND OK
88645 message: +QIURC: "recv",1,4,70006C6C