No internet via ethernet on new AX73
I recently swapped ISP and modem due to constant dead spots and slow speeds. I am now with Aussie BB and I bought the Archer AX73 router to increase my home wifi range and connectivity. From the LAN ports I run Cat5e 0r 6 Ethernet cable to my LG TV, my Anthem receiver,Cambridge Audio DVD player and the last port (port one) runs to an 8 port switch in my garage which is then distributed to my home office where my laptop is hard wired. The issue I have is that I have no internet from the LAN ports. I tried changing settings in the App and on the desktop but it either changes nothing or I loose WIFI also. Some advice on how to fix this issue would be appreciated.