[atlas] Probe v3, problems

I tried to replace by failing v2 probe with a v3 probe I had mailed to me from a closed site https://atlas.ripe.net/probes/16058/' The first led is on, second is off, and 3rd is slow-blink, which indicates a "network problem"? I tried a different power supply, replaced the network cable, tried other ports and even put in a new power supply, all with no change. The DHCP server does not see it. Any other suggestions?