Failed saving network „9 Net”. IP Addresses „192.168.0.2” are used in network „0 Home”. (msg: api.err.WanIpUsedAsNatOutbound)
I solved this problem. I have upgraded to 1.9.0. To change the WAN IP you need to add an additional IP address to the WAN interface. Then change the address in the Network / LAN / Advanced tab „Internet Source IP” to which the NAT is performed. Only then can the Primary WAN IP Address be changed. community.ui.com