November 3, 20241 yr I’m encountering an issue with my 10G Dual Port RJ45 NICs that use the Intel X550 chipset on both of my Unraid servers. Unraid is only detecting these NICs at a 1G speed, even though they’re connected to a 2.5G switch and should be running at 2.5G. Interestingly, when I used my previous ASUS XG-C100C NIC, Unraid correctly recognized the 2.5G speed. Same with the motherboard’s 2.5G NIC. Also, when I passthrough the Intel NIC for testing purposes to a Windows VM, the speed shows up correctly as 2.5G in the Windows VM!.. What steps can I take to ensure that Unraid correctly detects the NIC at 2.5G speed? Edited November 3, 20241 yr by Teejoo
November 3, 20241 yr Community Expert Supported link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full 2500baseT/Full 5000baseT/Full Advertised link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full NICs support those link speeds but are not advertising, could be a driver/firmware issue issue, there may also be a way to force it, I remember that there was for some Realtek NICs.
November 19, 20241 yr Author A follow up: I managed to use a script to activate the 2.5g mode using the script plugin. This worked, Unraid now detects the correct speed. However, although a speedtest shows it has indeed almost 2.5G speed, actual copy speed was much lower compared to my other asus 2.5G nic. Very strange. So in the end I returned the Intel card and put back the Asus nic. Edited November 19, 20241 yr by Teejoo
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