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guys, so I recently bought an SFP cable to hook up to my server and my switch (Ubiquiti), but today, when I tried to hook everything up in the unifi controller in the port, I was connecting the SFP, I got an error saying RX Fault.

I saw some posts saying to check the bios, and the hardware is being initialized as far as I know. After looking into the bios settings, I reset the partitions to defaults, and the rest of the settings looked like it defaulted too (First time using SFP, so I don't really know what to look for).

Controller:

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Proxmox:

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In proxmox, it's not detecting the connection, but after inspecting the hardware, I saw a green light blink every now, and then so I guess something is being detected, and in proxmox, it detects the hardware/ports.

eno1 and eno2 are from the SFP controller hardware.

DeadSec
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  • Did you ever resolve this? – Anthony Horne Oct 21 '22 at 07:46
  • @AnthonyHorne try manual mode for SFP in Ubiquiti and set the speed to your cards manufacturer speed capability. For me fixed the issue but the error still appears – DeadSec Oct 21 '22 at 14:56
  • I did. I have noticed that on shutdown, it stays active, but on startup of the Qnap, it goes offline. I need to remove the SPF Module on the Qnap and just re-insert it to get things up again (until the next restart). – Anthony Horne Oct 24 '22 at 07:48
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    I remember doing some configurations on ubuntu and adding then to before startup for the SFP network. If I manage to find what I did ill let you know. – DeadSec Oct 24 '22 at 12:26
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    @AnthonyHorne I ended up resolving by using a SFTP cable of the ubiquiti shop. – DeadSec May 12 '23 at 14:05
  • Thanks I’ll try it out. – Anthony Horne May 15 '23 at 17:48

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