Problem with IP

[kfabe8]

I have a router/bridge that I can access and program only with 192.168.1.X to 192.168.1.XXX. No problems until "IP Conflict" on Netgear 3300 changed IP to 10.0.0.1. I can still program router/bridge with 192.168.1.X and save settings but it will not bridge without LAN connection. Using the 10.0.0.1 and subnets I can't get anything to save. How can I get back to 192.168.1.X and will it effect the 3 phones and 2 laptops that are fine with the 10.0.0.1 change?