I have just replaced my Archer C7 with an AX6000 for future proofing and hoping to get a better wi-fi signal. Everything is working almost right but there are 2 issues:

All my connections are showing as 'wired' even when they are wireless.

My wi-fi signal strength is no different from that I got from my Archer A7. The tested download speed using my Ethernet connected PC is a regular and steady 108mbps. Using a tablet r phone, this can drop to around 10mbps even when close to the router, and little other traffic using the network.