@MisterW I'm embarassed to say that no, I hadn't tried another cable on that port. At your suggestion I did. And now it works fine. I'm not usually that clueless, but from time to time.... Anyway,...

I have an ER605 connected to two WANs. Each of two LAN ports is connected to an SG2008p switch. It's all working, however I can't get one of the LAN ports to be 1G. The two WAN ports and one of the...