ESP8266 Community Forum

Posted: **Fri Nov 04, 2022 2:48 am**

If I use the AT+CIPSTART command when using ESP-01, ERROR CLOSED is output.

ESP-01 is obviously connected to wifi and I have done port forwarding. What's the problem?

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AT+CWJAP?

+CWJAP:"KT_GiGA_2G_076C","88:3c:1c:15:07:70",7,-58

OK
AT+CIFSR

+CIFSR:STAIP,"172.30.1.87"
+CIFSR:STAMAC,"3c:61:05:d2:42:64"

OK
AT+CIPSTART="TCP","211.34.160.97",7979

ERROR
CLOSED
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Posted: **Sat Nov 05, 2022 4:06 am**

it can't connect. is it a valid IP address and port?

Posted: **Sat Nov 05, 2022 7:37 am**

Similar problem. You can see the discussion here: https://bbs.espressif.com/viewtopic.php?t=3268

ESP8266 Community Forum

If I use AT+CIPSTART command using, ERROR CLOSE is output.

If I use AT+CIPSTART command using, ERROR CLOSE is output.

Re: If I use AT+CIPSTART command using, ERROR CLOSE is outpu

Re: If I use AT+CIPSTART command using, ERROR CLOSE is outpu