Hi, I am unable to connect to the FTP server with EC20 getting errors 605 or 609.
[2023-07-03_16:13:59:222]ATI
[2023-07-03_16:13:59:222]Quectel
[2023-07-03_16:13:59:222]EC20F
[2023-07-03_16:13:59:222]Revision: EC20CEFILGR06A05M1G
[2023-07-03_16:13:59:222]OK
[2023-07-03_16:14:06:718]AT+QIACT=1
[2023-07-03_16:14:06:734]OK
[2023-07-03_16:14:33:955]AT+QIACT?
[2023-07-03_16:14:33:955]+QIACT: 1,1,2,“2409:40D1:C:8EBA:8000:0:0:0”
[2023-07-03_16:14:33:955]OK
[2023-07-03_16:14:37:079]AT+QPING=1,“google.com”,5,10
[2023-07-03_16:14:37:079]OK
[2023-07-03_16:14:37:172]
[2023-07-03_16:14:37:172]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,32,255
[2023-07-03_16:14:37:203]
[2023-07-03_16:14:37:203]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,31,255
[2023-07-03_16:14:37:233]
[2023-07-03_16:14:37:233]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,30,255
[2023-07-03_16:14:37:264]
[2023-07-03_16:14:37:264]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,31,255
[2023-07-03_16:14:37:296]
[2023-07-03_16:14:37:296]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,29,255
[2023-07-03_16:14:37:327]
[2023-07-03_16:14:37:327]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,29,255
[2023-07-03_16:14:37:347]
[2023-07-03_16:14:37:347]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,31,255
[2023-07-03_16:14:37:378]
[2023-07-03_16:14:37:378]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,29,255
[2023-07-03_16:14:37:409]
[2023-07-03_16:14:37:409]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,31,255
[2023-07-03_16:14:37:440]
[2023-07-03_16:14:37:440]+QPING: 0,“2404:6800:4002:826:0:0:0:200E”,32,29,255
[2023-07-03_16:14:37:440]+QPING: 0,10,10,0,29,32,29
[2023-07-03_16:14:44:976]AT+QFTPCFG=“contextid”,1
[2023-07-03_16:14:44:976]OK
[2023-07-03_16:14:47:450]AT+QFTPCFG=“account”,“Username”,“Password”
[2023-07-03_16:14:47:450]OK
[2023-07-03_16:14:48:849]AT+QFTPCFG=“filetype”,1
[2023-07-03_16:14:48:849]OK
[2023-07-03_16:14:50:163]AT+QFTPCFG=“transmode”,1
[2023-07-03_16:14:50:163]OK
[2023-07-03_16:14:51:528]AT+QFTPCFG=“rsptimeout”,180
[2023-07-03_16:14:51:528]OK
[2023-07-03_16:14:54:058]AT+QFTPOPEN=“domain/IP”,21
[2023-07-03_16:14:54:058]OK
[2023-07-03_16:16:54:209]
[2023-07-03_16:16:54:209]+QFTPOPEN: 605,0
[2023-07-03_16:18:44:526]AT+QFTPCFG=“rsptimeout”,90
[2023-07-03_16:18:44:526]OK
[2023-07-03_16:18:48:409]AT+QFTPOPEN=“122.176.45.211”,21
[2023-07-03_16:18:48:409]OK
[2023-07-03_16:20:18:430]
[2023-07-03_16:20:18:430]+QFTPOPEN: 609,0
[2023-07-03_16:20:21:416]AT+QENG=“SERVINGCELL”
[2023-07-03_16:20:21:432]+QENG: “servingcell”,“NOCONN”,“LTE”,“TDD”,405,867,5FC16,140,38750,40,5,5,1D,-104,-17,-67,-3,23
[2023-07-03_16:20:21:432]OK