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idata
Community Manager
1,191 Views

DH55HC Network Adapter will not connect at 1Gbps

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I have a DH55HC Desktop Board and I cannot get the 825578DC Gigabit Network Connection to connect to my LAN at anything higher than 100Mbps. I have checked all the cables and ports on my switch and had another PC connect to the switch at 1Gbps. I have the latest driver for the Ethernet Controller installed (11.16.87.0) and the latest version of Intel PROSet installed (18.0.1).

Has anyone else had this problem, and if so, what did you do to resolve it?

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1 Solution
idata
Community Manager
88 Views

Hi Andy,

Please make sure you have the latest BIOS update for the board:

http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=20725&lang=eng&OSVersion=&DownloadTyp... Download Center

Please be sure to read and follow all accompanying instructions, which can be found at this link:

http://www.intel.com/support/motherboards/desktop/sb/cs-022312.htm Desktop Boards — BIOS update instructions

If the issue persists, proceed to check your warranty options to replace the board.

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6 Replies
JBish3
New Contributor II
88 Views

Hi Andy,

Hmm .. i am not sure if it helps. But you can change the connection speed from Device Manager.

Go to Device Manager--> Network option --> right the click the option inside it. Here you have to find the option that changes link speed.

Regards,

J.Bisht

idata
Community Manager
88 Views

I have tried setting the speed to 1.0Gbps or having it set to Auto-Negotiate. If it is set at 1Gbps, it will not connect at all. At auto-negotiate, it only connects at 100Mbps.

idata
Community Manager
88 Views

Hello Andy, Try with a LAN cable to connect to another computer, if both a re 1Gbps then you don't need a cross over cable.

Regards

idata
Community Manager
88 Views

I tried this also. Still only got 100Mbps on the DH55HC end, while I got 1Gbps on the other PC end

idata
Community Manager
89 Views

Hi Andy,

Please make sure you have the latest BIOS update for the board:

http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=20725&lang=eng&OSVersion=&DownloadTyp... Download Center

Please be sure to read and follow all accompanying instructions, which can be found at this link:

http://www.intel.com/support/motherboards/desktop/sb/cs-022312.htm Desktop Boards — BIOS update instructions

If the issue persists, proceed to check your warranty options to replace the board.

View solution in original post

idata
Community Manager
88 Views

Dan,

I do have the latest BIOS update. I will check into getting warranty replacement.

Thanks,

Andy

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