@Kevin_Z Thanks a lot! Hard reset has done its job. After hard reset, I was able to connect my device to my main router. God.. I wish i knew this earlier. Anyway I really appreciate your help! Best...

@Kevin_Z Hi thanks for your reply. Unfortunately turning the phone again didn't help much with connecting to home wifi. However weirdly as I connected my phone to TP-LINK_SMART Bulb_B49B(device wifi)...

Hi my name is heeje from S.Korea I just received smart bulb LB230 from Amazon yesterday and i tried to connect the device to my wifi but it keeps failing. I tried changing regions locations but...