I have a HP3400cl switch with SFP 1310nm SM connected to the RB2011UAS-IN (v6.6) with a genuine mikrotik SFP installed and i can't get auto negotiation to work.
When i force it to 1000 mbit full duplex it links up, but with incredibly unstable data. (lots of packet loss)
Currently I have this problem at 2 locations and have now recreated it here in my lab setup. on matching equipment.