@SonJim You can check tha negotiated speed of the C6 in AP mode on your main router C6 WebGUI here: Lets say that you've connected the C6 in AP mode to LAN3 port of your main router. Check if its...

@Henrik_Eronen Yes, you can do that and you should if you want to use an ethernet backhaul between the two routers. Here's the public beta v1.2.6 that you can use as well. Keep in mind that if you...

@MasterPiece572 In such case I would RMA the router - contact your retailer and ask for assistance on that.

@Gelo_G What's your main router make and model ? Check you main router 2.4GHz wireless channel and make sure that it uses wireless channel 1, 6 or 11.

@MasterPiece572 Your FW region is most probably (US). This should be printed on the device bottom sticker. For your current FW version Archer AX23(US)_V1.20_1.1.0 Build 20230725 there's a note that:...

@MasterPiece572 Which FW region your router is - that's on its bottom sticker as well as its HW version. Which version of the FW you're trying to downgrade to ?