ESP8266 Community Forum

hi.

when sending data to a tcp-server espconn_send(...) sometimes returns an error-code of -7
looking into espconn.h error-code -7 is missing.

anybody has an idea what this means?

more codes are missing in espconn.h.
is there a list with the missing error-codes?

thanks
io

it seems to be related to how fast data is sent.
error-code -5 is: Operation in progress

might be it means the same?