f r-15863, scandone

[faeton]

Hi,

when I reboot esp8266 by system_restart the WPS and first connect not work, return f r-15863. What mean this message: f r-15863? This happen on one device, what may cause this problem?

Have a nice day.

[ESP_Rubin]

Could you guide me the reproduce steps?
the best is share me the compile project, thank you!!