_:nbe8d483d32d74bd5b70054b2561612d7xb36
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"Did you mean the  AC86c  router instead of modem?\n\nThe modem with DHCP disabled no longer has any network functions beyond serving as an interface between your ISP and router.\n\nSo the modem does not need have or be assigned an IP address.\n\nYou may find the following links helpful:\n\nhttps://www.avast.com/c-ip-address-public-vs-private\n\nhttps://www.lifewire.com/what-is-a-private-ip-address-2625970\n\nI, for example, limit the router's allowed DHCP IP address range to  just the number of installed DHCP IP devices plus a couple of extras DHCP IP for guests.    When we had large family gatherings I would increase the allowed DHCP IP address range.   But never the full available range.\n\nAs for 192.168.0.1 you do not need that.   If the router is set at 192.168.1.1 all network devices should be configured to look for that router/gateway to obtain a DHCP IP address.   Again the modem is not and should not be involved in that process.\n\nBackground information:\n\nhttps://www.cloudns.net/blog/dhcp-server/\n\nFor more detail:\n\nhttps://www.computernetworkingnotes.com/ccna-study-guide/how-dhcp-works-explained-with-examples.html\n\nAs for mesh -  I will need to defer to those who use mesh and can actually attest one way or another to the real world pros and cons.   (Versus ads and marketing.)\n\nSome products use a very broad meaning of the word \"compatible\"."
<https://forums.tomshardware.com/threads/help-how-to-connect-2-asus-routers-by-wifi-as-repeaters.3724641/#post-22461032>