Problems with network connection


  • I cannot connect to the radio network. Is there an AT command sequence starting from initializing the modem till attachment to the network ?



  • Updated AT command sequence. The following commands need to be executed as displayed here:

    // Turn Off Radio (IMPORTANT)

    AT+CFUN=0

    // The following commands need to be executed only once

    AT+QCFG=“nbsibscramble“,0

    AT+CPSMS=0,“00000001”,“00000001”

    // !-> Reboot and turn off Radio (AT+CFUN=0)!

    AT+QCFG=“band“,0,0,80,1

    AT+QCFG=“nwscanmode“,3

    AT+QCFG=“nwscanseq“,030201

    AT+QCFG=“iotopmode“,1

    AT+QCFG=“servicedomain“,1,1

    AT+QCFG=“gprsattach“,0

    // Turn on Radio

    AT+CFUN = 1

    // APN

    AT+CGDCONT=1,“IP”,“internet.nbiot.telekom.de”

    AT+COPS=?

    AT+COPS=1,2,“26201“,9

    // Check if modem is attached

    AT+CGATT?

    // Check if modem is registered correctly. Expected result is : +CEREG: 0,5

    AT+CEREG?



  • What is the CGDCONT for the US? Is any thing else different for the US?



  • Dear Pete,
    thank you for your question. It will be answered soon.



  • alt text



  • The command for the US is:
    AT+CGDCONT=1,“IP”, “iot.nb”


 

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