@AmandaWJ Yes, this would be a good test. Just make sure you have successfully reset the device: Directly press and hold the reset button on the side panel with a solid pin for approximately 1 to 2...

@Dale-R PLC should be connected to the same electric circuit - go through this FAQ - Part 3 for more details on that matter.

@AmandaWJ When the RE is configured (closer to your main router) and you start positioning the RE - follow this guide for best perfomarmance. There's a chance that the place where you putting the RE...

@Stumpy2 You can try with a 2 way splitter and if it doesn't suit your needs a network switch like this one should always do the job.

@tcsevens Putting the TP-Link router in a DMZ on the ISP router means that you've opened all ports to the TP-Link router. By bypassing the ISP modem you probably mean to configure the ISP modem in...

@whitezombie455 Nobody can give an ETA for this. You have to keep an eye on the new FW releases for your devices and updates on the threads I pointed.