I have one of our devices in Hong Kong and it is connecting to the network but failing to send data because of a CME Error 714 (HTTP DNS error). See below for an example log. Why would I get this type of error only in Hong Kong?
RX> R: 17/01/21 05:23:25.053 INFO: TX> "AT+CIND?;+CEREG?;+CGREG?;+COPS?;+QCSQ;+QNWINFO"
RX> R: 17/01/21 05:23:25.062 INFO: RX> "AT+CIND?;+CEREG?;+CGREG?;+COPS?;+QCSQ;+QNWINFO"
RX> R: 17/01/21 05:23:25.071 INFO: RX> "+CIND: 0,4,1,0,0,0,1,0"
RX> R: 17/01/21 05:23:25.076 INFO: RX> "+CEREG: 0,4"
RX> R: 17/01/21 05:23:25.082 INFO: RX> "+CGREG: 0,1"
RX> R: 17/01/21 05:23:25.087 INFO: RX> "+COPS: 0,2,"45400",0"
RX> R: 17/01/21 05:23:25.093 INFO: RX> "+QCSQ: "GSM",-69"
RX> R: 17/01/21 05:23:25.098 INFO: RX> "+QNWINFO: "EDGE","45400","GSM 1800",660"
RX> R: 17/01/21 05:23:25.105 INFO: RX> "OK"
RX> R: 17/01/21 05:23:25.171 INFO: TX> "AT+QIACT=1"
RX> R: 17/01/21 05:23:25.176 INFO: RX> "AT+QIACT=1"
RX> R: 17/01/21 05:23:26.499 INFO: RX> "OK"
RX> R: 17/01/21 05:23:26.505 INFO: TX> "AT+QIACT?"
RX> R: 17/01/21 05:23:26.510 INFO: RX> "AT+QIACT?"
RX> R: 17/01/21 05:23:26.515 INFO: RX> "+QIACT: 1,1,1,"100.120.231.169""
RX> R: 17/01/21 05:23:26.522 INFO: RX> "OK"
RX> R: 17/01/21 05:23:26.528 INFO: TX> "AT+QLTS=1"
RX> R: 17/01/21 05:23:26.533 INFO: RX> "AT+QLTS=1"
RX> R: 17/01/21 05:23:26.538 INFO: RX> "+QLTS: "2021/01/17,05:23:26+32,0""
RX> R: 17/01/21 05:23:26.545 INFO: RX> "OK"
RX> R: 17/01/21 05:23:26.553 INFO: TX> "AT+QENG="servingcell""
RX> R: 17/01/21 05:23:26.559 INFO: RX> "AT+QENG="servingcell""
RX> R: 17/01/21 05:23:26.566 INFO: RX> "+QENG: "servingcell","NOCONN","GSM",454,00,4CF,FAA5,1,660,0,-70,255,255,0,41,81,1,-,-,-,-,-,-,-,-,-,"-""
RX> R: 17/01/21 05:23:26.579 INFO: RX> "OK"
RX> R: 17/01/21 05:23:26.605 INFO: TX> "AT+CSQ"
RX> R: 17/01/21 05:23:26.610 INFO: RX> "AT+CSQ"
RX> R: 17/01/21 05:23:26.614 INFO: RX> "+CSQ: 22,0"
RX> R: 17/01/21 05:23:26.619 INFO: RX> "OK"
RX> R: 17/01/21 05:23:26.994 INFO: TX> "AT+QHTTPURL=58,3"
RX> R: 17/01/21 05:23:27.010 INFO: RX> "AT+QHTTPURL=58,3"
RX> R: 17/01/21 05:23:27.015 INFO: RX> "CONNECT"
RX> R: 17/01/21 05:23:27.026 INFO: TX> "http://iot.machinemax.com/v1/mm1b/fw/860536043097312/check"
RX> R: 17/01/21 05:23:27.035 INFO: RX> "OK"
RX> R: 17/01/21 05:23:27.042 INFO: TX> "AT+QHTTPPOST=97,3,60"
RX> R: 17/01/21 05:23:27.048 INFO: RX> "AT+QHTTPPOST=97,3,60"
RX> R: 17/01/21 05:24:19.100 INFO: RX> "+CME ERROR: 714"
RX> R: 17/01/21 05:24:19.417 INFO: TX> "AT+QHTTPPOST=97,3,60"
RX> R: 17/01/21 05:24:19.423 INFO: RX> "AT+QHTTPPOST=97,3,60"
RX> R: 17/01/21 05:24:32.463 INFO: TX> "AT+CIMI"
RX> R: 17/01/21 05:24:32.479 INFO: RX> "AT+CIMI"
RX> R: 17/01/21 05:24:32.483 INFO: RX> "454080000348253"
RX> R: 17/01/21 05:24:32.488 INFO: RX> "OK"
RX> R: 17/01/21 05:24:32.502 INFO: TX> "AT+CRSM=176,28539,0,0,12"
RX> R: 17/01/21 05:24:32.509 INFO: RX> "AT+CRSM=176,28539,0,0,12"
RX> R: 17/01/21 05:24:32.515 INFO: RX> "+CRSM: 144,0,"54F421FFFFFFFFFFFFFFFFFF""
RX> R: 17/01/21 05:24:32.523 INFO: RX> "OK"