Cannot access AX-6000 router management interface via wifi but can via ethernet
When connected to the AX6000 via wifi, we have a fully functioning connection to the internet from all devices. No issues there but, we can't access the router's management interface from two computers when they are connected to the router via wifi. So, an example is a Mac with 192.168.0.247 address and it can't access the router's management interface. Same goes for a Windows 10 laptop and a Chromebook. The router's local address is 192.168.0.1 and all the devices are on the same subnet.
When connected via ethernet, we can see the management interface and login on the Mac and Windows machines. Have cleared the DNS cache as admin on the Mac but no change there and have tried three different browsers. Can connect to the management interface on an iPhone via wifi.
Any thoughts / opinions?