1 Reply Latest reply on Oct 19, 2012 3:23 PM by mark_h_@intel

    Dell Optiplex 755 with the Intel 82566 NIC constantly disconnects and reconnects to network.

    Garry Bowers

      We have placed 90 Optiplex 755 with the Intel 82566 NIC cards into three labs.  These machines have Windows 7 Pro.  These labs have Cisco 3550 switches for the network.  Immediately after installing these systems we found that the computers kept connecting and disconnecting from the network.  We have updated the firmware on the switch, and installed the latest driver on these machines.  The problem continues.  Dell has offered no support or help.  The answer they gave me was, reinstall the OS, or the motherboard needs to be replaced.  Odd that 90 out of 270 we ordered all need knew motherboards.  We know it is a fairly common problem with this series of NIC's but have not located a solid fix for the problem.   Also, as an FYI, we never had this issue with the systems in the lab previous to installing these computers.


      Any assistance would be greatly appreciated!