thank you, it works!

@Solla-topee thank you for your help, but I use them in AP mode. yes, my C100 is right beside them, and it can't find it and any other 2.4G Wifi network. I also manually changed my 2.4G wi-Fi to...

@Solla-topee I have the same issue starting a weeks ago: 1. What's the model number of your router/modem? my router/modem are RE305 firmware 1.1.5 and RE550 firmware 1.0.11, I tried both, C100 can't...