I have problem with WiFi on Android 4.4.2. (phone ZTE Geek 2) After few days of working WiFi stopped work and WiFi connetion has an error: “Saved, secured with WPA /WPA2” Router reset, change configuration phone restart didnt work
I made hard reset of conifiguration of phone and it worked for few days (about 5 days) But it stopped work again. And now only that hard reset helps to make WiFi work again
Tested with 3 different routers. Another phone work. This phone work only few days after reset.