In Windows 7 How can I change the Autoconfiguration adress that my network cards default to

bilbo442

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Apr 20, 2014
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In Windows 7 How can I change the IPv4 Autoconfiguration address that my network cards default to when for some reason they can not find the DHCP Server? Please do not say give them static IP addresses. This Autoconfiguration should be a useful thing but if it autoconfigures to some address that you do not use then its a real pain.
 
Solution
You cannot change the APIPA address. However, you can disable APIPA altogether via a registry hack:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Create a Reg DWord "IPAutoconfigurationEnabled" (capitalization counts)

set to 0 for disabled
set to 1 for enabled

jinksy

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Dec 16, 2012
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Your network card does not have a "default" address, DHCP will issue an IP and lease it for a period of time. IF DHCP is not issuing IP addresses to any of your machines then you need to look into it as an issue. Other than that if you want to manually assign an IP address to a machine, then you will need to setup a static IP.

Its either static OR DHCP

Unless your on about your routing table?
 

bilbo442

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Apr 20, 2014
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No not a default the autoconfig address!? The DHCP works fine unless something disconnects or just for a change the Dlink needs resetting! Of course I can give a static ip but then win7 does not use DHCP... BUT if I have selected win7 use DHCP and it can not find the DHCP server for any of the above WIN7 autoconfigures the network address to some address that is obviously very dear to microsoft but totally useless to me. I would like to find a way to make this Autoconfiguration useful by replacing the microsoft decided one with a useful static address that will work on my network
 
You cannot change the APIPA address. However, you can disable APIPA altogether via a registry hack:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Create a Reg DWord "IPAutoconfigurationEnabled" (capitalization counts)

set to 0 for disabled
set to 1 for enabled

 
Solution

bilbo442

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Apr 20, 2014
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Ok ex_bubblehead, I will play around with that, not sure what APIPA is but it seems pretty dumb not to be able to change it as it could be useful? The IP addresses that it gives out obviously have some higher meaning that i am not aware of. My workaround at the minute is having my Dlink router on a timer that switches it off and on at 3AM ( usually one reset required every 24hrs)? Works pretty well but not very elegant!