Windows 8 and 8.1 Forums


IP Settings Can't Be Changed After Manually Set

  1. #1


    Posts : 42
    Windows 8.1 Pro x64 / Windows 7 x64

    IP Settings Can't Be Changed After Manually Set


    I do a lot of AV system programming, which generally involves having to set my IP address for either my Ethernet port or WiFi card to manual IPs temporarily. I am having an issue on a relatively clean install of Win8 Pro that after I change my IP, when I go back into TCP/IP v4 to change it back to DHCP, it is already set to automatic... but if I right click on the connection icon and go to Status, it still has the static address. I tried to set it to another manual address and to hopefully go back in to revert, but that doesn't work.

    The ONLY thing that seems to work is removing the NIC from Device Manager and then re-scanning for hardware changes where it will be automatically detected with DHCP enabled by default.

    WiFi card is Intel Centrino Ultimate-N 6300 AGN.

    Ethernet NIC is a Broadcom NetXtreme 57??.

    I've got the latest available drivers, and using generic ones doesn't help. It's also on both NICs so I don't it is a driver issue.

    Ideas?

      My System SpecsSystem Spec

  2. #2


    Posts : 1,308
    Windows 8 enterprise x64


    command prompt "ipconfig /release all"
      My System SpecsSystem Spec

  3. #3


    Posts : 42
    Windows 8.1 Pro x64 / Windows 7 x64


    Quote Originally Posted by area 66 View Post
    command prompt "ipconfig /release all"
    I believe I tried that and it did not work... perhaps because that only releases the IP when obtained by DHCP? My problem is I can't switch it back to DHCP. And why, when I go back to IP settings, isn't the currently assigned static address populated in the number fields? It is pre-set to DHCP as if that is the current setting, but it is not. If I leave it to DHCP and click OK, but go back to Status, the static IP that I originally set is still there.
      My System SpecsSystem Spec

  4. #4


    Posts : 1,308
    Windows 8 enterprise x64


    Is that a PC in your house or something at work, or something that come from work ?
      My System SpecsSystem Spec

  5. #5


    Posts : 42
    Windows 8.1 Pro x64 / Windows 7 x64


    It is my own laptop. The Windows 8 Pro x64 comes from my TechNet subscription and is the final RTM build.
      My System SpecsSystem Spec

  6. #6


    Posts : 1,308
    Windows 8 enterprise x64


    Are you on a domain with Policy ?
      My System SpecsSystem Spec

  7. #7


    Posts : 42
    Windows 8.1 Pro x64 / Windows 7 x64


    Nope. No Domain. No Policy. It is for the most part a clean install of Windows 8 Pro.
      My System SpecsSystem Spec

  8. #8


    Posts : 1,308
    Windows 8 enterprise x64


    This is wear , all true I'm not surprise I have few problem with network nic changing model by them self, and also virtual network nic that disappear after an update. This OS have some serious flaw for sure.
      My System SpecsSystem Spec

  9. #9


    Posts : 42
    Windows 8.1 Pro x64 / Windows 7 x64


    Hi all,

    I posted a screencast of what I go through here: https://dl.dropbox.com/u/3071354/NIC%20IP%20Bug.swf

    It looks like every time I change the IP and go back in, it adds another instance of the TCP/IP v4 stack, and starts listing multiple IPs for the same NIC.

    It does this for both the Wireless and Wired adapters.

    I am gonna post this in the TechNet Group as well and see what I can find out.

    WEIRD.
      My System SpecsSystem Spec

  10. #10


    From my point of view there is no default gateway being defined and the IP's being used seem to be in a different subnet than the router is using but that is hard to tell because nothing is showing a normal default gateway like 192.168.0.1.

    This may be confusing the adaptor as to which network it's actually connected too.

    If you need to connect to multiple subnets you should click "use the following address" to enabled then go into the Advanced IP settings tab and list the different, IP's, subnet's and gateways that you need to connect too.

    You must be using a PCI wireless adaptor to get that 450Mbps speed.
      My System SpecsSystem Spec

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