LAN net 10 not possible with sonic/att fiber?

[fiber3wl]

I am a Sonic DSL customer upgrading to fiber via AT&T. Just installed today and I was given a Pace 5268AC router.
On my home network I have many machines with fixed net 10/24 addresses. On the Pace under DHCP settings it tells me I shouldn't start my net number with 10 (doesn't say mustn't)! I tried anyways and it give me an error saying "Router Address should not start with address in CG_NAT".

Any ideas how to deal with this besides renumbering or going to DMZ mode? Or switch to another router option from ATT?

[js9erfan]

Here's an ATT thread on this issue. If you don't want to change your existing static IPs then yes, I would purchase your own router to manage DHCP so you can serve 10.x addresses:

https://forums.att.com/t5/2013-Archive/ ... -p/3065135