Hi Nick! Are you using DHCP server to provide automatic IP addresses to all clients on your network? Usually DHCP server runs on your router. If so, set the SB2 to get IP address automatically. Then IP conflicts can be resolved by rebooting everything.
Even if you have only a couple clients, better to put them on dynamic IPs.
If you need static IPs for some reason, you have to go around to every device and write down the IPs and hostname for your records. Then if you get a conflict, you can ping the IP and find out who's cheating.
If you have mixed dynamic and static IPs, you have to create a range of IPs for dynamic allocation in the DHCP settings, and put your statics outside of that dynamic range. Still keep a record of your statics if you have more than one.
Does this help?