@Sushi81 Hello, the tpPLC utility does not support Windows Server 2019 yet. So I'm afraid that it is the compatibility issue. https://www.tp-link.com/support/download/tl-pa8030p-kit/#Utility We will...

@lesneven Yes, you can use two extenders in the same network. What is the led status of the second unit? Did you connect it to the main router's wifi or the first extender's? And please use the main...

@danico Hi Dan, from the log error, the RE450 failed to scan the main router's wifi, that is why it failed to connect to the main router. Try to customize the wireless settings of the main router...

@MicroThin Could you please provide more information about the 5GHz issue? Like the device cannot detect the 5GHz ssid or failed to connect to the 5GHz or speed is slow? Meanwhile, you mentioned that...

@Sreejith Is there any specific symptom of the auto reset issue? What is the led status at that time? Have you ever tried to change another login username and password which is more complicated? You...

@eliday15 That is normal. And the secondary DNS is an reserved DNS server and it won't work until the primary one failed. Generally speaking, the primary DNS server will be the gateway of the main...