can i use Netgear 16-port Gigabit Ethernet smart managed switch with the deco M4? Virgin router (Modem mode) -- Deco M4 --Netgear switch a friend says i cant use managed switch so if someone could hel

When I run a speed test in the Deco app, I'm seeing 280mbps which is in line with the service we get from Comcast. However, when I run a speed test on any of the devices connected to the network via w