I changed my Wi-Fi password. Kasa smart plug stopped working. I tried to set plug back to factory settings, never got a flashing amber light. I removed the plug from my app, attempted to add a new device following instructions within the app, it fails every time. I finally removed the app and added back on from the App Store, tried adding a new device again, it keeps failing. I have been working on this for over an hour and a half, consulted support @TP link, it is not working, I don't know what to do next. Very frustrating.