EC200U-CN ping works but http/https failed

Technical Subjects Software Internet Protocol
1

Hi Team,

I am using EC200U-CN model. I facing a strange problem. ping is success but http/https fails always.

Below is the response

+CGPADDR: 1,“100.73.120.46”

[2024-11-15_01:55:46:252]AT+QPING=1,“xxxxxxx”,1

[2024-11-15_01:55:46:252]OK
[2024-11-15_01:55:46:590]
[2024-11-15_01:55:46:590]+QPING: 0,“142.250.183.4”,64,80,255

[2024-11-15_01:55:46:590]+QPING: 0,“142.250.183.4”,64,81,255
[2024-11-15_01:55:46:760]
[2024-11-15_01:55:46:760]+QPING: 0,“142.250.183.4”,64,80,255

[2024-11-15_01:55:46:760]+QPING: 0,“142.250.183.4”,64,79,255

[2024-11-15_01:55:46:760]+QPING: 0,4,4,0,79,81,79

above log clearly says network reachable is OK.

But when I try to do http request it is having below problem. Similar issue with https also.

[2024-11-15_01:56:03:318]AT+QHTTPCFG=“contextid”,1

[2024-11-15_01:56:03:318]OK
[2024-11-15_01:56:03:318]AT+QHTTPCFG=“responseheader”,1

[2024-11-15_01:56:03:318]OK
[2024-11-15_01:56:03:318]AT+QHTTPCFG=“url”,“http://www.sina.com.cn”

[2024-11-15_01:56:03:318]OK
[2024-11-15_01:56:03:318]AT+QHTTPURL=23,5

[2024-11-15_01:56:03:318]CONNECT
[2024-11-15_01:56:08:317]
[2024-11-15_01:56:08:317]+CME ERROR: 726

Please help me to figure out the issue.

2

you try url https://help.sina.com.cn/

3

Hi @herbert.pan-Q

HTTPS also cause same error. I don’t think URL is the issue.

AT+QHTTPCFG=“contextid”,1
AT+QHTTPCFG=“responseheader”,1
AT+QHTTPCFG=“sslctxid”,1
AT+QHTTPCFG=“contenttype”,4
AT+QHTTPCFG=“url”,“https://www.google.com”

If I use above error is same
+CME ERROR: 726

4

Hi @herbert.pan-Q

I have also set SSL as per user guide. But whether it is http or https it is having same error +CME ERROR: 726. Please help me to fix it.

I am using firmware EC200UCNAAR03A12M08

AT+QSSLCFG=“sslversion”,1,1
AT+QSSLCFG=“ciphersuite”,1,0X0035
AT+QSSLCFG=“seclevel”,1,1

5

you try

AT+QSSLCFG=0,0,“seclevel”,0
AT+QHTTPCFG=“ssl”,0,0
AT+QHTTPURL=25
https://help.sina.com.cn/
AT+QHTTPREAD=1024