@Manned6141 Hello guys ! So, after having tested a lot of things, I finally ordered TP Link 10gb Gbic (SM5110-SR) and guess what ? It works perfectly. The issue is solved. What is weird is that in...

@Manned6141 Hello ! I've received the same switch. I updated it to the latest firmware (1.20.20141206 Rel39596). I used different gbic from 10gtek, intel or finisar. I have the exact same problem on...