WiFi issue

update: seems it's not related to save() or any of the test code. I can see this by just setting up wifi (after FW flashing with flash erase), saving it, reset->still ok and then just resetting the ESP a few times (rst-button) and testing status with

var wifi = require("Wifi");
wifi.getDetails();

First attempt was ok, then reset and I got status off, wifi.connect() gives bad password.