I have 3 X55s in AP mode connected to a BWG320 ATT fiber modem. Everything has been working well for months but all of the sudden I have an issue where some devices are getting bad IPs from the DHCP server.

I have noticed what happens is they get assigned a 192.168.0.* IP instead of a proper 192.168.1.* which is the subnet from my fiber modem. So the devices think they are connected but don't have internet.

I have disabled Smart DHCP in the hopes that devices will get IPs directly from the BWG320 but it makes no difference.

For computers I can manually renew the DHCP lease to fix it but for smart devices I can't do this. Sometimes blocking the device and then unblocking it in the Deco app will fix it but not always. This started with one Eufy vaccuum but now it is also happening to a windows PC and an Amazon Firestick.