Issues with 5 gigabit card

[HMM_]

I recently upgraded to a BrosTrend 5Gb PCIe Network Card and a 3-gigabit internet plan. However, I'm encountering an issue where my computer fails to connect to the internet when the network card's speed & duplex setting is on 5 Gbps Full Duplex. It works fine on 2.5 Gbps Full Duplex. I've ensured the network card has the latest drivers installed, and it's connected using a CAT 7 cable to a 10-gigabit port on my Gigahub. Is there a possible fix for this? 

[Elrys]

One year and a half later and the issue is still there. I've got a brand new 5 Gbps card and a CAT 8 cable that can't negociate at 5 Gbps with Bell GigaHub. Auto-negociation is failling, I had to manually put the slower 2.5 Gbps Full-Duplex mode to get it to "work".

[Vanadiel]

It's likely a limitation of the chipset used. I highly doubt it's a firmware resolvable issue.

Some chipsets only support 1 or 10 Gbps, some support 1, 2.5, 5, 10 etc...

[MrPjT]

There’s nothing you can do about this. We’ve been going around in circles with Bell for quite some time. the only success I ever had was using a 10 GB port and I was able to get my fault three gig fibre speed. the only success I ever had was using a 10 GB port and I was able to get my full  three gig fibre speed.

other than that, like you I’m stuck at 2.5 so there’s no point in upgrading the service.

[dks]

That is correct. If you have the 3 or 8 Gb profile, use the 10 Gb port on the Giga hub. There are known issues with 5 Gb and 2.4 Gb motherboard network ports and cards and the Giga Hub. This is a limitation of the card's firmware. I have had success with a 10 Gb network card. They are more expensive than a 1 Gb card, but have come down significantly in price, (now well under $100) in the last year. Always check the actual firmware brand. Intel, Marvell and Realtek are common firmware brands.