My Asus router is set for automatic updates, assume that includes firmware I changed internet providers about 2 months ago. went from 60 / 10 with VMedia ( Cogeco cables) and now at 500 / 500 fibre with MNSi in Windsor area. My 5G wifi signal (iPhone 7) has been between steady 160- 200 Mbps always, but has dropped to 50 - 70 Mbps in the last 3 weeks. Nothing physically has changed in my house, same location and no extra devices. I even tried limiting most devices to 5 Mbps, blocking other guest's devices. My new service provider verified twice now that I am getting 500 Mbps coming into my home. Tech said perhaps being radio signals maybe something outside my home is now affecting my wifi inside my home ? He also suggested a "repeater" but if signal is that low 8 feet from the router , what would that help ? I cannot connect hardwired to my router and test the 5G as suggested, my laptop is not 5G. Anyone experience a drop in speed for no apparent reason and fixed the issue ? Any ideas, simple tests I can try ?