Unable to download the latest firmware 3.0.0.4.388_25144 shown on the product support page. Weirdly, the link of the download button is https://dlcdnets.asus.com/pub/ASUS/wireless/RT-AXE7800/FW_TUF_AX5400_300438824206.zip?model=RT-AXE7800 . It makes no sense and this file failed to update my router. Anyone knows where to find the real file for RT_AXE7800? (the check firmware on the router's page only shows 3.0.0.4.388_25142 that cause connection problems with IoT plugs, thermostats and cameras)