We are having problems with DHCP over VPN on our site to site. The main campus has a TZ210 and the remote has a TZ105. They are set to deliver DHCP addresses from our internal server to the remote site. Everything has worked fine for the last couple months until yesterday when out of the blue the remote site quit receiving addresses. I have restarted both firewalls, the DHCP server, and nothing has changed in the firewall settings. Does anyone have any idea what could cause this? The DHCP server is working perfectly on the main campus, just not over VPN. I also tried a global VPN client on a single laptop that worked before yesterday as well, no luck. Any help would be greatly appreciated!