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PLS62-W, SIM CARD Policy does NOT include LTE | Thales IoT Developer Community

November 15, 2021 - 2:42pm, 79 views

Hi, 

If we change our sim policy, to only include 2G and 3G and exclude LTE, we are seeing this weird behavior where the network and packet domain allow registration, but we get registration denied after a short time. We are not forcing the modem to use a particular RAT technology, as we need the same firmware to work with all other devices and sims. I believe in this case the modem would prefer LTE over 3G and 3G over 2G.

Why is this happening? What is the modem trying to do? Is it trying to upgrade its 3G connection to LTE and then we are getting kicked out of network? How can we fix this so it works with all types of sim policies? 

[2021-11-15 10:35:33] Modem:Rx: +CREG: 5,"0055","00A012A8",6
[2021-11-15 10:35:34] Modem:Rx: +CGREG: 5
[2021-11-15 10:35:34] Modem:Tx: AT+CGATT=1
Modem:Rx: OK                              [2021-11-15 10:35:35]
[2021-11-15 10:35:35] Modem:Tx: AT^SICA=1,1
Modem:Rx: OK                               [2021-11-15 10:35:35]
[2021-11-15 10:35:36] Modem:Rx: +CGEV: ME PDN ACT  1
[2021-11-15 10:35:37] Modem:WaitAttach
[2021-11-15 10:35:37] Modem:Tx: AT+CSQ
Modem:Rx: +CSQ: 18,99                 [2021-11-15 10:35:37]
[2021-11-15 10:35:38] Modem:Rx: OK
[2021-11-15 10:35:38] Modem: Cinterion Model: PLS62 Revision: 02.010 A-Revision: 01.000.05
[2021-11-15 10:35:38] Modem: ICCID: 8931081021025233582
[2021-11-15 10:35:39] Modem:PostConfig
[2021-11-15 10:35:39] Modem:Tx: AT+COPS?
Modem:Rx: +COPS: 0,0,"3 UK",2           [2021-11-15 10:35:40]
[2021-11-15 10:35:40] Modem:Rx: OK
[2021-11-15 10:35:40] Modem:Tx: AT^SISX="HostByName",1,"########"
Modem:Rx: ^SISX: "HostByName", "######### "                                 [2021-11-15 10:35:41]
[2021-11-15 10:35:42] Modem:Rx: OK
[2021-11-15 10:35:42] Modem:Tx: AT^SCFG="Tcp/WithURCs","on"
Modem:Rx: ^SCFG: "Tcp/WithURCs","on"                       [2021-11-15 10:35:43]
[2021-11-15 10:35:43] Modem:Rx: OK
[2021-11-15 10:35:43] Modem:Tx: AT^SMONI=255
Modem:Rx: ^SMONI: 3G,10564,175              [2021-11-15 10:35:43]
[2021-11-15 10:35:44] Modem:Rx: OK
[2021-11-15 10:35:44]
[2021-11-15 10:35:44]  Connection Type:3G
[2021-11-15 10:35:45]  RSSI: -77
[2021-11-15 10:35:45]  smaller than -100 is poor, only valid for 2G
[2021-11-15 10:35:45]  NetLAC: 0055 CellID: 0A012A8 MNC: 20 MCC: 234
[2021-11-15 10:35:46]  RSCP: -82
[2021-11-15 10:35:46]  smModem:Rx: +CGREG: 4
[2021-11-15 10:35:47] Modem:Rx: +CREG: 3
[2021-11-15 10:35:47] Modem:Rx: +CEREG: 3
[2021-11-15 10:35:48] Modem:Tx: AT^SISO=0
Modem:Error:ServerDown                   [2021-11-15 10:35:48]
[2021-11-15 10:35:48] Modem:Rx: +CME ERROR: 3
[2021-11-15 10:35:48] Modem:Error:CMEError
[2021-11-15 10:35:49] Modem:Tx: AT^SISC=0
Modem:Rx: OK                             [2021-11-15 10:35:49]
[2021-11-15 10:35:49] Modem:Tx: AT^SMSO
Modem:Rx: ^SMSO: MS OFF                [2021-11-15 10:35:50]
[2021-11-15 10:35:50] Modem:Rx: OK
[2021-11-15 10:35:50] Modem:Rx: ^SHUTDOWN
 

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Below is the full list of AT commands sent:

[2021-11-15 10:34:33] Modem:PowerOn at 279974073.477
[2021-11-15 10:34:35] Modem:Ignition
[2021-11-15 10:34:40] Modem:Rx: ^SYSLOADING
[2021-11-15 10:34:41] Modem:Rx: ^SYSSTART
[2021-11-15 10:34:41] Modem:Tx: ATE0
Modem:Rx: ATE0                      [2021-11-15 10:34:41]
[2021-11-15 10:34:42] Modem:Rx: OK
[2021-11-15 10:34:42] Modem:CommonPreConfig
[2021-11-15 10:34:43] Modem:Tx: AT\Q3
Modem:Rx: OK                         [2021-11-15 10:34:43]
[2021-11-15 10:34:43] Modem:Tx: AT+CMEE=1
Modem:Rx: OK                             [2021-11-15 10:34:44]
[2021-11-15 10:34:44] Modem:Tx: AT+CREG=2
Modem:Rx: OK                             [2021-11-15 10:34:44]
[2021-11-15 10:34:44] Modem:Tx: AT+CREG?
Modem:Rx: +CREG: 2,0                    [2021-11-15 10:34:44]
[2021-11-15 10:34:45] Modem:Rx: OK
[2021-11-15 10:34:45] Modem:Tx: ATI1
Modem:Rx: Cinterion                 [2021-11-15 10:34:45]
[2021-11-15 10:34:46] Modem:PreConfigLTE
[2021-11-15 10:34:46] Modem:Rx: PLS62
[2021-11-15 10:34:46] Modem:Rx: REVISION 02.010
[2021-11-15 10:34:46] Modem:Rx: A-REVISION 01.000.05
[2021-11-15 10:34:46] Modem:Rx: OK
[2021-11-15 10:34:47] Modem:Tx: AT+CPIN?
Modem:Rx: +CPIN: READY                  [2021-11-15 10:34:47]
[2021-11-15 10:34:48] Modem:Rx: OK
[2021-11-15 10:34:48] Modem:Tx: AT^SCFG="GPRS/AutoAttach","enabled"
Modem:Rx: ^SCFG: "GPRS/AutoAttach","enabled"                       [2021-11-15 10:34:49]
[2021-11-15 10:34:49] Modem:Rx: OK
[2021-11-15 10:34:49] Modem:Tx: AT+CGREG=1
Modem:Rx: OK                              [2021-11-15 10:34:50]
[2021-11-15 10:34:50] Modem:Tx: AT+CEREG=1
Modem:Rx: OK                              [2021-11-15 10:34:50]
[2021-11-15 10:34:50] Modem:Tx: AT+CGREG?
Modem:Rx: +CGREG: 1,4                    [2021-11-15 10:34:51]
[2021-11-15 10:34:51] Modem:Rx: OK
[2021-11-15 10:34:51] Modem:Tx: AT+CEREG?
Modem:Rx: +CEREG: 1,4                    [2021-11-15 10:34:51]
[2021-11-15 10:34:52] Modem:Rx: OK
[2021-11-15 10:34:52] Modem:Tx: AT+CGModem:Rx: +PBREADY
[2021-11-15 10:35:05] Modem:Tx: AT^SAD=11
Modem:Rx: ^SAD: 11                       [2021-11-15 10:35:05]
[2021-11-15 10:35:05] Modem:Rx: OK
[2021-11-15 10:35:06] Modem:Tx: AT^SGAUTH=1,0,"",""
Modem:Rx: OK                                       [2021-11-15 10:35:07]
[2021-11-15 10:35:07] Modem:Tx: AT+CGDCONT=1,"IP","intelligence.m2m"
Modem:Rx: OK                                                        [2021-11-15 10:35:07]
[2021-11-15 10:35:08] Modem:Tx: AT^SISS=0,srvType,"Socket"
Modem:Rx: OK                                              [2021-11-15 10:35:08]
[2021-11-15 10:35:09] Modem:Tx: AT^SISS=0,conId,1
Modem:Rx: OK                                     [2021-11-15 10:35:09]
[2021-11-15 10:35:09] Modem:Tx: AT^SISS=0,"address","socktcp://####;etx;timer=100"
Modem:Rx: OK                                                                                               [2021-11-15 10:35:1
[2021-11-15 10:35:10] Modem:Tx: AT^SCFG="tcp/IRT","3"
Modem:Rx: ^SCFG: "Tcp/IRT","3"                       [2021-11-15 10:35:11]
[2021-11-15 10:35:11] Modem:Rx: OK
[2021-11-15 10:35:12] Modem:Tx: AT^SCFG="tcp/MR","15"
Modem:Rx: ^SCFG: "Tcp/MR","15"                       [2021-11-15 10:35:12]
[2021-11-15 10:35:12] Modem:Rx: OK
[2021-11-15 10:35:12] Modem:Tx: AT^SCFG="tcp/OT","6000"
Modem:Rx: ^SCFG: "Tcp/OT","6000"                       [2021-11-15 10:35:13]
[2021-11-15 10:35:14] Modem:Rx: OK
[2021-11-15 10:35:14] ModeModem:Tx: AT^SCFG="GPIO/mode/RING0","std"
ModeModem:Tx: AT&C2                                                [2021-11-15 10:35:15]
Modem:Rx: OK       [2021-11-15 10:35:15]
[2021-11-15 10:35:15] Modem:Tx: AT&Modem:Rx: +CGEV: NW CLASS A
[2021-11-15 10:35:33] Modem:Rx: +CREG: 5,"0055","00A012A8",6
[2021-11-15 10:35:34] Modem:Rx: +CGREG: 5
[2021-11-15 10:35:34] Modem:Tx: AT+CGATT=1
Modem:Rx: OK                              [2021-11-15 10:35:35]
[2021-11-15 10:35:35] Modem:Tx: AT^SICA=1,1
Modem:Rx: OK                               [2021-11-15 10:35:35]
[2021-11-15 10:35:36] Modem:Rx: +CGEV: ME PDN ACT  1
[2021-11-15 10:35:37] Modem:WaitAttach
[2021-11-15 10:35:37] Modem:Tx: AT+CSQ
Modem:Rx: +CSQ: 18,99                 [2021-11-15 10:35:37]
[2021-11-15 10:35:38] Modem:Rx: OK
[2021-11-15 10:35:38] Modem: Cinterion Model: PLS62 Revision: 02.010 A-Revision: 01.000.05
[2021-11-15 10:35:38] Modem: ICCID: 8931081021025233582
[2021-11-15 10:35:39] Modem:PostConfig
[2021-11-15 10:35:39] Modem:Tx: AT+COPS?
Modem:Rx: +COPS: 0,0,"3 UK",2           [2021-11-15 10:35:40]
[2021-11-15 10:35:40] Modem:Rx: OK
[2021-11-15 10:35:40] Modem:Tx: AT^SISX="HostByName",1,"########"
Modem:Rx: ^SISX: "HostByName", "######### "                                 [2021-11-15 10:35:41]
[2021-11-15 10:35:42] Modem:Rx: OK
[2021-11-15 10:35:42] Modem:Tx: AT^SCFG="Tcp/WithURCs","on"
Modem:Rx: ^SCFG: "Tcp/WithURCs","on"                       [2021-11-15 10:35:43]
[2021-11-15 10:35:43] Modem:Rx: OK
[2021-11-15 10:35:43] Modem:Tx: AT^SMONI=255
Modem:Rx: ^SMONI: 3G,10564,175              [2021-11-15 10:35:43]
[2021-11-15 10:35:44] Modem:Rx: OK
[2021-11-15 10:35:44]
[2021-11-15 10:35:44]  Connection Type:3G
[2021-11-15 10:35:45]  RSSI: -77
[2021-11-15 10:35:45]  smaller than -100 is poor, only valid for 2G
[2021-11-15 10:35:45]  NetLAC: 0055 CellID: 0A012A8 MNC: 20 MCC: 234
[2021-11-15 10:35:46]  RSCP: -82
[2021-11-15 10:35:46]  smModem:Rx: +CGREG: 4
[2021-11-15 10:35:47] Modem:Rx: +CREG: 3
[2021-11-15 10:35:47] Modem:Rx: +CEREG: 3
[2021-11-15 10:35:48] Modem:Tx: AT^SISO=0
Modem:Error:ServerDown                   [2021-11-15 10:35:48]
[2021-11-15 10:35:48] Modem:Rx: +CME ERROR: 3
[2021-11-15 10:35:48] Modem:Error:CMEError
[2021-11-15 10:35:49] Modem:Tx: AT^SISC=0
Modem:Rx: OK                             [2021-11-15 10:35:49]
[2021-11-15 10:35:49] Modem:Tx: AT^SMSO
Modem:Rx: ^SMSO: MS OFF                [2021-11-15 10:35:50]
[2021-11-15 10:35:50] Modem:Rx: OK
[2021-11-15 10:35:50] Modem:Rx: ^SHUTDOWN
[2021-11-15 10:35:56] Modem:SwitchOff after 82.676 next session in 300