Archer AX73 dropping out on Lan and wireless
4 days ago I replaced a faulty TP-Link MR600 with a new Archer AX73. It's used to distribute internet throughout our house via WiFi and through a wired ethernet system. The MR600 had to be replaced because the 5gHz channel had died. The wired ethernet connections were working faultlessly on it.
The AX73 has real problems in the same ethernet ecosystem. It drops out momentarily every few minutes. This is a problem for teenage sons and their gaming and wife's work when she's on Zoom meetings. Connections lost every time. It also causes frustrating dropouts on ethernet connected sound system running music off ethernet connected Mac. As I said, wired connection was never a problem with the MR600.
Wireless is also dropping out too but haven't worked out if it's at the same time as the ethernet drop outs.
Firmware is up to date. Internet provider reports no problems with incoming broadband. Nothing has changed except the router. Any suggestions anyone?