I just purchased a hEX S & S-RJ01; but I can't seem to get the SFP port to work with my WAN. I'm going directly from a cable modem into the SFP port, but I can't get it to link up. If I put the cable modem cord into ETH1 and change the setting from ETH1 to SFP1, it works. It seems I can only use the SFP port for a LAN port?
Pardon my ignorance; I'm a beginner with this hardware & software.