I am having the following issue - IPSEC VPN into the router on WAN2 from another office, working fine for about two months until now. It is running 2 machines and 2 IP phones and a network printer. The local main office RV042 is set as DHCP server as is the router in the other office for that remote office. The two are connected via VPN. I am getting "duplicate use detected" errors where one machine already has a DHCP address and another is given that address and I get the error of duplicate IPs. I started running Wireshark Protocol Analyzer on a PC in the office to see what comes up this evening. I'd appreciate any help on this.