Andre… sorry, my (idiot) mistake, I put the boxes away before making the post, so didn’t have them right in front of me to read the model numbers.
Devices are AR2412 and AR84. (older GLD branded ones.)
(That should also clarify of course the ports on the boxes are dsnake. -not slink)
Steffen,
I think the DX white paper is exactly what I need, ports are in 100mb mode, but negotiated there – the paper indicates this *may* cause issues, I’ll see if configuring the port speed resolves the red light.