DHCP reservation

I have a few subnets, and all of them have a dhcp server/pool range for specific range. A few of them have a IP reservation (bind mac to IP address). The error/strange behavior I get is if the MAC address...
AD Authentication Time-out

This issue just started on Sunday, reoccurred just now. Remote VPN login times-out. I've narrowed it down to an issue with the FW connecting to AD. The "Test Connection" failed. A reboot of the FW fixes...
V21 DHCP Relay

Hello everyone, since the update to V21 the DHCP relay no longer works. Can anyone help here?
DHCP lost to all devices except one vlan

hi i previously posted a question on how to migrate trunk vlans from one port to another mew port for lag configuration. Once i did the transfer we lost connection with dhcp all clients cannot get ip...
Device Registration fails: Appliance connectivity issue with the license server - Time not set

I tried to register a RMA firewall with SFOS 21 EAP after it has been claimed in Central. It did not work. Either Administration -> "Registration" failed also Sophos Central -> "Sophos Central registration...