@Chisparro Hi, Does the Tether app at least recognize your RE450 as a local device when you are directly connected to its network or does it not recognize it at all?

@Sanskriti Hi, The main router will identify each device by its MAC address. Every networking device that TP-Link manufactures is being given its own and unique MAC address. You connect the second...

@Mobiuswolf 19 Mbps is indeed very slow. Have you tested this with only one device so far? Any chance to test with another device? Does your client device show the so-called "link speed" somewhere?...

@Soullesito Yeah, sometimes PC cases are not of the greatest quality and then things don't fit nicely. I've had such issues before. What you can try is to loosen the two screws that hold the slot...

@Soullesito Ok, I see. It seems to me as if your TX55E is not detected properly. Can you please check from the Device Manager what is the hardware ID of that "unknown device"? (click "Properties" of...

@Soullesito https://www.intel.com/content/www/us/en/products/sku/189347/intel-wifi-6-ax200-gig/downloads.html Beside this, if it's not too much of a hassle you could also bring your PC close enough...