I have the aformentioned onboard NIC. When trying to connect an ethernet cable from the onboard NIC to a 1 Gig port, autonegotation works and I get a connection, blinking lights, etc.

When I use the same cable and try and connect it to this module. I have tested the module seperately and it works.
https://www.amazon.ca/dp/B07P39G4XJ?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1

The switch (CRS328-24p-4s+) detects the module, however no connection, no lights when using AQC107 -> Ethernet -> Wiitek module.

I've tried disabling auto-negotiation and setting the link speed manually.

tower-diagnostics-20251002-1142.zip

It could just be a compatibility issue between the NIC and the module, if there's no link, not much you can do on the Unraid side, but you can try booting a different OS to confirm, like an Ubuntu live flash drive.

The module claims to be compatible with your mikrotik switch, but this may be a false info. Even if it is detected, it does not mean that it will work too always.

The 1G link you can establish does not prove anything too.

There maybe still issues like "wrong cable", "too long line" or something that do not apply to 1G mode.

Also, take a look into the Switch's stats for the port. Your module says it will only work between 0 and 70°C. In MikroTiks you will find Modules with 90-96° running when in 10G mode. Maybe your thing overheats and shuts itself off for safety reasons?

It can also be a wrong driver in UNRAID, test it with something else like @JorgeB already told you.

(the AQC107 based cards are not the brightest one, sound good, work so-so and are not good in servers at all)

Edited October 2, 2025Oct 2 by MAM59

Confirmed that the chain of NIC -> Ethernet -> SFP+ transceiver does not work on ubuntu.

I'll play with it more and report back if there's a way around it.

Send the transceiver back and get a real one directly from MikroTik.

Or at least from 10GTek, they are known to work.

(Beware, the MikroTik one is "10G only!". It does not run with 2,5G or 5G. Or, they have a more modern model available now, dunno. RJ45 is dead for me, only Fiber is used anymore here)

(Update: they now ship a /r2 version that supports different speeds: https://mikrotik.com/product/s_rj10 )

Edited October 3, 2025Oct 3 by MAM59

13 hours ago, MAM59 said:

Send the transceiver back and get a real one directly from MikroTik.

Or at least from 10GTek, they are known to work.

(Beware, the MikroTik one is "10G only!". It does not run with 2,5G or 5G. Or, they have a more modern model available now, dunno. RJ45 is dead for me, only Fiber is used anymore here)

(Update: they now ship a /r2 version that supports different speeds: https://mikrotik.com/product/s_rj10 )

It worked immediately when using this one. Only getting about 7.2 Gb, but that's fine.

https://www.amazon.ca/dp/B06XG9DPJ7?ref=ppx_yo2ov_dt_b_fed_asin_title

2 minutes ago, bobo89 said:

Only getting about 7.2 Gb, but that's fine.

Yeah, as I've said, AQC107 are not the best choice for servers. They have not many/large buffers to handle multiple connections smoothly.

Just now, MAM59 said:

Yeah, as I've said, AQC107 are not the best choice for servers. They have not many/large buffers to handle multiple connections smoothly.

Yep understood. It's a compromise because it's onboard, so I don't have to use up a PCIE slot to get 10 Gig