@MR.S I also tried this but in trying to flash the latest version it failed but the oldest version did load ok so I wonder if there is a shortcut to get to the latest versin without flashing 15...

I am building (new setup) a relativley complex network with ER605 acting as the gateway to the WAN with three VLANs and managing DHCP on each Vlan. I have the ER605 Linked to an T1600G-28TS smart...