Trouble getting Intel PRO/1000 GT Desktop Adapters to show up as 1gb



  • Hi I just upgraded my pfSense box and put in 2 PCI Intel PRO/1000 GT Desktop Adapters.

    For some reason I can't get them to auto-detect my 1gb lan, my other gigabit nics (2 of them) work just fine at gigabit speeds.  I can't manually set the speeds on the cards either (They lose all connectivity).  Both cards only detect a 100mb/s connection.

    Anybody else had this problem?  Comments, Suggestions?

    Thanks,
    Robert


  • Banned

    Have you tried with other cables???



  • Yep - tried with other cables, other switches and to the same switches the other working gb nics are plugged into.



  • I'm running two Intel PRO/1000 GT Desktop Adapters on my pfSense box and they were immediately recognized as gigabit interfaces. I suggest you re-assign both the LAN and WAN interfaces manually and see if anything changes; I don't think you can simply swap them out. Other than that, are you sure they're set up on the LAN and not WAN side of things?



  • Hmm, the two interfaces on the cards are opt1 and opt2, they aren't connected to the LAN or WAN.  I just had them plugged into gigabit switches to make a DMZ and WIFI networks.

    I'll try swapping the cables around some more and reconfiguring and see what happens.  Thanks for the suggestions.



  • So it turns out BOTH cables I was using were wired wrong… (these were purchased cables) The nics now show up as 1 gigabit full duplex but for some reason I can't get speeds > 99mb/s through the router.  I am positive that everything is now gigabit from server -> switch -> router -> switch -> desktop (on other subnet).  Has anyone seen this before where everything shows up as gigabit but the throughput is still only 100mb/s?

    Thanks,
    Robert

    @foundbobby:

    Hmm, the two interfaces on the cards are opt1 and opt2, they aren't connected to the LAN or WAN.  I just had them plugged into gigabit switches to make a DMZ and WIFI networks.

    I'll try swapping the cables around some more and reconfiguring and see what happens.  Thanks for the suggestions.


  • Banned

    What kind of hardware are you using and what kind of trafffic are the 100mb/s for??



  • I'm using an asus p5q-e motherboard with gigabit nic to a gigabit dlink switch to the gigabit pci-e intel EXPI9301CTBLK on the pfsense box then the data is coming out of the lan nic on the router (also a gigabit nic) Intel PWLA8391GTL to a linksys gigabit switch over to my gigabit nic on my desktop.  I used to get gigabit speeds when everything was on the same lan and not running through the router.

    The 100mb/s was achieved by copying a 10GB file from my server to my desktop.


  • Banned

    Did you measure time instead og looking at the traffic graph??



  • I looked at the BW graph as well as the transfer speed according to Windows (12.5MB/s ish) which confirms the 100mb/s.  I will time a file later but I suspect it will also confirm the 100mb/s.


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