A7670E SIMCOM modem can't connect to broker created on ESP32C3 weactsutudio board

[LUperdd]

Using SSCOM tool:

AT+CSQ

+CSQ: 27,99

OK
AT+CPIN?

+CPIN: READY

OK
AT+CPSI?

+CPSI: LTE,Online,214-03,0x2526,248405103,497,EUTRAN-BAND3,1849,5,0,8,50,55,10

OK
AT+CMQTTSTART

OK

+CMQTTSTART: 0
AT+CMQTTACCQ=0,"a1accq",0

OK
AT+CMQTTCFG="argtopic",0,1,1

OK
AT+CMQTTCONNECT=0,"tcp://192.168.43.128:1883",20,1

+CMQTTCONNECT: 0,3

ERROR
AT+CMQTTCONNECT=0,"tcp://192.168.43.128",20,1

+CMQTTCONNECT: 0,3

ERROR