- Wed Oct 07, 2015 2:35 pm
#30829
It is really possible that you have problem with power supply, because otherwise, doing an "AT+CWMODE=3" would not producing a reset. And after that "strange" reset, maybe it becomes back to CWMODE=1, so simple STA, and that would explain why doing an AT+CWSAP is giving you an error, because this command is invalid in STA mode.
Power supply issue has been the problem of more than 25% of the people on this forum, simply because this ESP8266 chip is really hungry when RF is starting. Make sure you PSU is strong enough, and add a 100uF or 470uF capacitor nearby the ESP power pins. If you still have this reset after having done those precaution, we will try to find another explaination, but for now, it is clearly a PSU problem.