Windows 10: In BIOS RTL8139 NIC card is being shown as 10EC:8131 and LAN port not connecting to internet

Discus and support In BIOS RTL8139 NIC card is being shown as 10EC:8131 and LAN port not connecting to internet in Windows 10 Drivers and Hardware to solve the problem; Few years ago I had bought a brand new Intel DH61WW Mother Board and started using by installing Windows XP OS. One day during lightening on board LAN... Discussion in 'Windows 10 Drivers and Hardware' started by Baachcha Raghavendra, Jan 23, 2025.

  1. BAACHCHA RAGHAVENDRA
    Baachcha Raghavendra Win User

    In BIOS RTL8139 NIC card is being shown as 10EC:8131 and LAN port not connecting to internet


    Few years ago I had bought a brand new Intel DH61WW Mother Board and started using by installing Windows XP OS. One day during lightening on board LAN Port got burnt and LAN stopped working. I disabled on board LAN port and installed a PCI LAN AddOn Card and this hardware configuration worked fine till Windows 7 Ultima OS version.Subsequently I upgraded the OS to Windows 10 Pro 32 bit version then also LAN card worked fine. When I upgraded the OS to Windows 10 Pro 64 bit version, LAN Card is not getting configured and am not able to connect to internet. LAN Card controller is Realtek RTL8139D.

    :)
     
    Baachcha Raghavendra, Jan 23, 2025
    #1
  2. LEVIS RAJU
    Levis Raju Win User

    REALTEK RTL8139/810x Family Fast Ethernet NIC not detected by Windows 10

    Those listed under Model was :

    • Realtek RTL8139/810x Family Fast Ethernet NIC (Microsoft)
    • Realtek RTL8139/810x Family Fast Ethernet NIC (Microsoft)
    • Realtek RTL8139/810x Family Fast Ethernet NIC (Realtek Semiconductor Corp.)
    • Realtek RTL8139/810x Family Fast Ethernet NIC (Realtek Semiconductor Corp.)
    • Realtek RTL8139/810x Family Fast Ethernet NIC (Realtek Semiconductor Corp.)
     
    Levis Raju, Jan 23, 2025
    #2
  3. AUGGY
    auggy Win User
    REALTEK RTL8139/810x Family Fast Ethernet NIC not detected by Windows 10

    If you did a clean install then you may have to approach the issue as hardware related.

    Since the onboard network adapter did not work in Windows 7 then I might suggest to disable the onboard in the BIOS and concentrate on trying the REALTEK RTL8139/810x Family Fast Ethernet NIC to work.

    For instance you could try re-seating the REALTEK RTL8139/810x Family Fast Ethernet NIC.
     
    auggy, Jan 23, 2025
    #3
  4. LEVIS RAJU
    Levis Raju Win User

    In BIOS RTL8139 NIC card is being shown as 10EC:8131 and LAN port not connecting to internet

    REALTEK RTL8139/810x Family Fast Ethernet NIC not detected by Windows 10

    Realtek RTL8139/810x Family Fast Ethernet NIC (Microsoft)

    Realtek RTL8139/810x Family Fast Ethernet NIC (Microsoft)

    Realtek RTL8139/810x Family Fast Ethernet NIC (Realtek Semiconductor Corp.)

    Realtek RTL8139/810x Family Fast Ethernet NIC (Realtek Semiconductor Corp.)

    Realtek RTL8139/810x Family Fast Ethernet NIC (Realtek Semiconductor Corp.)
     
    Levis Raju, Jan 23, 2025
    #4
Thema:

In BIOS RTL8139 NIC card is being shown as 10EC:8131 and LAN port not connecting to internet

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