I can see the TCP connection is closed after +KFTPCLOSE.
AT+KCNXCFG=1,“GPRS”,“internet”
OK
AT+KFTPCFG=1,“xxx.xxx.xxx.xxx”,“username”,“password”,21,1
+KFTPCFG: 1
OK
+KCNX_IND: 1,4,1
+KCNX_IND: 1,1,0
+KFTP_IND: 1,1
AT+KFTPRCV=1,"",“2222.txt”
CONNECT
2222–EOF–Pattern–
OK
+KFTP_IND: 1,2,4
AT+KFTPCLOSE=1
OK
+KCNX_IND: 1,5,30
+KCNX_IND: 1,0,0
ati3
RHL769x.2.24.173100.201709051100.x7120m_1
OK
ati9
RHL769x.2.24.173100.201709051100.x7120m_1
HL7692
HL769x.2.24
x7120m
FUSED
2017-09-05 11:32:03
r10943
OK
