Disable DHCP on Blue

So I have this modem https://www.rogers.com/customer/support/article/learn-more-about-the-rogers-ignite-modem

Will the Firewalla Blue work? I don't think I can disable DHCP on it., but I can edit the LAN start and end ranges for DHCP.

Do you think this would still work? I think this is the model info for it:

Technicolor CGM4140COM
Rev 2.2