@Zoli15 Hi, Unfortunately the problem can only be solved by replacing the Archer C20 with another router model that has Gigabit Ethernet ports. As you can see here...

@Sauravm22 As I mentioned earlier, any cable rated Cat 5e or better is sufficient for the RE450. (provided your Cat 5e cable is of good quality) The RE450 has a Gigabit Ethernet port....

@Sauravm22 The typical impedance of Ethernet cable is standardized as 100 Ohm. Usually the manufacturers omit the "100 Ohm" marking on their cables. But still, Ethernet cables without a "100 Ohm"...

@CzarnyRob Ok. I see that you have another Intel AX201 card installed. I think that could be the reason why you initially had problems installing the driver for the AX210. Maybe Intel never thought...

@Sauravm22 The color of the cable doesn't tell what speeds are possible. Look for markings on the Ethernet cable like "Cat 5e" or "Category 5E" or "Gigabit". If you see these markings or markings...

@CzarnyRob Let's care about the Wi-Fi driver first. The hardware IDs of your card look fine. There should be no reason for the driver to refuse installation. Try to install the driver manually by...