I have a port (all wiring is T568A) to my son’s room. My work laptop connects fine. No issues. I can see IPV4 and 6 addresses, DNS etc. His desktop will not connect. Only shows IP6. No IP4, no DNS. We have tried swapping the cable to his desktop and it still makes no different.

Any ideas where to start troubleshooting?

  • ferret@sh.itjust.worksEnglish
    1·
    1 year ago

    Flash a linux live usb and boot from it. see if it can auto negotiate, so you know if it is a software problem or a hardware problem

  • webbkoreyBEnglish
    1·
    1 year ago

    I’m also having a very similar issue. Desktop stopped working over Ethernet, cable works on another desktop as well as a laptop. It usually gets an ipv6 address, even though ipv6 is disabled at the router.

  • banjomann65OPBEnglish
    1·
    1 year ago

    Here is data from IPconfig /All

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : XXXX

    Primary Dns Suffix . . . . . . . :

    Node Type . . . . . . . . . . . . : Hybrid

    IP Routing Enabled. . . . . . . . : No

    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Ethernet:

    Connection-specific DNS Suffix . :

    Description . . . . . . . . . . . : Realtek Gaming GbE Family Controller

    Physical Address. . . . . . . . . : 80-E8-2C-D5-1E-E9

    DHCP Enabled. . . . . . . . . . . : Yes

    Autoconfiguration Enabled . . . . : Yes

    Autoconfiguration IPv4 Address. . : 169.254.254.92(Preferred)

    Subnet Mask . . . . . . . . . . . : 255.255.0.0

    Default Gateway . . . . . . . . . :

    DNS Servers . . . . . . . . . . . : 24.116.0.53

    24.116.2.50

    NetBIOS over Tcpip. . . . . . . . : Enabled