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lose of IP address
- Thread starter trbuman
- Start date
I take it that you are referring to a server that is connected to your ELAN? Looks like you have acquired an "APIPA" (Automatic Private IP Addressing) address. That would happen if the NIC card is set for DHCP, and a DHCP server cannot be contacted. So, was someone doing something on your server??
Aside from making sure DHCP is not enabled for this interface, here is how to disable APIPA:
To disable automatic address configuration
Open Registry Editor *
Caution:
Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer. You can also use the Last Known Good Configuration startup option if problems are encountered after manual changes have been applied.
In Registry Editor, navigate to the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSetServices\Tcpip\Parameters\Interfaces\adapter_name
Create the following entry:
IPAutoconfigurationEnabled: REG_DWORD
Assign a value of 0 to disable Automatic Private IP Addressing (APIPA) support for the selected network adapter.
Close Registry Editor.
*Notes
To open Registry Editor, click Start, click Run, type regedt32, and then click OK.
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure.
If the IPAutoconfigurationEnabled entry is not present, a default value of 1 is assumed, which indicates that APIPA is used.
If multiple adapters are installed, you can disable APIPA for all installed adapters by setting the
IPAutoconfigurationEnabled entry to 0 at the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSetServices\Tcpip\Parameters
Aside from making sure DHCP is not enabled for this interface, here is how to disable APIPA:
To disable automatic address configuration
Open Registry Editor *
Caution:
Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer. You can also use the Last Known Good Configuration startup option if problems are encountered after manual changes have been applied.
In Registry Editor, navigate to the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSetServices\Tcpip\Parameters\Interfaces\adapter_name
Create the following entry:
IPAutoconfigurationEnabled: REG_DWORD
Assign a value of 0 to disable Automatic Private IP Addressing (APIPA) support for the selected network adapter.
Close Registry Editor.
*Notes
To open Registry Editor, click Start, click Run, type regedt32, and then click OK.
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure.
If the IPAutoconfigurationEnabled entry is not present, a default value of 1 is assumed, which indicates that APIPA is used.
If multiple adapters are installed, you can disable APIPA for all installed adapters by setting the
IPAutoconfigurationEnabled entry to 0 at the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSetServices\Tcpip\Parameters
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