Hi - I tried to search for the answer on the community but can you advise if when the Super Hub 3 is in Modem Mode is it just the WiFi that gets turned off but DHCP still works for cabled connections? If DHCP is also disabled can a wired connection to the Hub still work?
When you are in modem only mode only the bottom ethernet port is activated and the Wifi it disabled you will only get assigned a wan IP address as the router does not assign dhcp you would need a separate router to run multipul devices in modem only mode
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People do seem to get obsessed with DHCP, that's the very least of your worries with the Hub in modem mode since in that setup the entire NAT/routing functionality is disabled. So you can have one and only one device attached and it will get a public IP address with no firewall protection at all. What is needed is to make that one and only device the WAN side of your own router - you connect all of your devices to the LAN side (be it Ethernet or WiFi) and your router does the NAT function (and DHCP).
This is an interesting question as I was wondering the same thing. On the Hub 3 GUI the help text at the top of the modem mode selection states that it disables WIFI but from the responses here I guess that’s incorrect and the whole router function is disabled as you would expect from the description.
Depends what you want to handle routing, DHCP, NAT, MAC filtering, parental controls etc.
If you need all of that (and working consistently) put the hub in Modem Mode.
BUT only the one Ethernet port on the hub will work (which the Deco connected will be connected to) so if you need additional ports you’d need to connect a simple unmanaged desktop switch to the Deco.
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