@Shermin Hi, May I know the model number of your range extender and is there anything wrong with the device? Thank you very much and wait for your reply.

@MST0185 Hi, Have you hold the reset pinhole for 10s to see if there is any change? If still nothing, I am afraid that the wrong firmware broke the extender and could not be reverted back. Thank you...

@Memarkiam Hi, May I know why do you want to change the password and currently, the extenders need to use the same password of the host router otherwise it would not have internet service? As for the...

@Willardx Hi, You could still buy one more TL-WPA4220 to cooperate with other powerline adapters; Thank you very much.

@MattsB Hi, Could you please try to update the following beta firmware to have a look: https://static.tp-link.com/2019/201912/20191203/re200v3_eu-up-ver1-1-1-P1[20191127-rel47933].zip how to update...

@MickGee Hi, you could have a look at the TL-WPA4220: https://www.tp-link.com/en/home-networking/powerline/tl-wpa4220/ Thank you very much.