You can see that QMTCONN is done immediately after QMTOPEN, I have also tried to CLOSE and OPEN the connection but same result.
The thing is that this worked before and now it cant.
14:25:58.432 -> BC66 Setup…
14:26:00.400 -> BC66 Setup success
14:26:00.400 -> Connecting to Adafruit io via MQTT…
14:26:01.431 -> at+qmtcfg=“version”,0,4
14:26:01.478 -> OK
14:26:02.509 -> AT+QMTCLOSE=1
14:26:02.509 -> ERROR
14:26:05.508 -> at+qmtopen=1,“io.adafruit.com”,1883
14:26:05.555 -> OK
14:26:06.540 ->
14:26:07.711 -> +QMTOPEN: 1,0
14:26:07.711 -> 2
14:26:09.726 -> at+qmtconn=1,"","",""
14:26:09.726 -> OK
14:26:09.726 ->
14:26:09.726 -> +QMTCONN: 1,0,0
14:26:09.726 ->
14:26:09.726 -> +QMTSTAT: 1,1
14:26:09.726 -> Publish GPS Data
14:26:10.757 -> at+qmtpub=1,0,0,0,"/feeds/GPS/csv",“24,1.4439263,103.7842,10”
14:26:10.757 -> ERROR
14:26:10.757 -> 1
14:26:10.757 -> Publish GPS Data
14:26:11.788 -> at+qmtpub=1,0,0,0,"/feeds/GPS/csv",“24,1.4439263,103.7842,10”
14:26:11.788 -> ERROR
14:26:11.788 -> 2
14:26:11.788 -> Connecting to Adafruit io via MQTT…
14:26:12.819 -> at+qmtcfg=“version”,0,4
14:26:12.819 -> OK
14:26:13.897 -> AT+QMTCLOSE=1
14:26:13.897 -> ERROR
14:26:17.553 -> at+qmtopen=1,"",1883
14:26:17.553 -> OK
14:26:17.553 ->
14:26:17.553 -> +QMTOPEN: 1,0
14:26:17.553 -> 0
14:26:19.615 -> at+qmtconn=1,"","",""
14:26:19.615 -> OK
14:26:19.615 ->
14:26:19.615 -> +QMTCONN: 1,0,0
14:26:19.615 ->
14:26:19.615 -> +QMTSTAT: 1,1
14:26:19.615 -> Publish GPS Data
14:26:20.646 -> at+qmtpub=1,0,0,0,"/feeds/GPS/csv",“24,1.4439263,103.7842,10”
14:26:20.646 -> ERROR