@Nemoadest Good job. Refer this thread for MR600.

@JustMeThree On the device bottom sticker is printed the exact router model, FW region and its HW version - details. Can you post this info here ?

@ZeshanAuto OK, Now it's clearer. You mentioned that C20 is using 5GHz to connect to your main router - correct ? Have you try to configure the 2.4GHz band to connect to your main router and check if...

@maxmonz Indeed the latest FW release. I found a similar problem in the Netgear community though. Have a look and see how this was resolved. If that doesn't work for you can try the AX55 Pro in AP...

@ZeshanAuto Let me see if I understand that correctly: If you connect your laptop to your main router wi-fi, you get a normal bandwidth. When you start your Archer C20 in RE mode and your laptop is...

@maxmonz Neither can I, that's why I suggested to set AX55 in AP mode. What your exact router model AX55 Pro or AX55 and what's its FW release indeed ?