When a DHCP server is unavailable on a Windows Vista-based computer, Windows Vista uses an APIPA IP address much sooner than Windows XP does under the same circumstances
When a DHCP server is unavailable on a Windows Vista-based computer, Windows Vista uses an APIPA IP address much sooner than Windows XP does under the same circumstances
| Article ID | : | 931550 |
| Last Review | : | March 15, 2007 |
| Revision | : | 1.2 |
SYMPTOMS
When you start a Windows Vista-based computer, you may notice the following:
| • | The computer first uses an Automatic Private IP Addressing (APIPA) IP address. |
| • | Later, the computer acquires an IP address from a Dynamic Host Configuration Protocol (DHCP) server. |
Back to the topCAUSE
This behavior occurs if Windows Vista cannot immediately contact a DHCP server. In this situation, Windows Vista tries for only six seconds to contact a DHCP server and then uses an APIPA IP address. Then, Windows Vista continues trying to acquire an IP address from a DHCP server.
MORE INFORMATION
This behavior differs from earlier versions of Windows. For example, when you start a Microsoft Windows XP-based computer, Windows XP tries for a full three minutes to contact a DHCP server before it uses an APIPA IP address.
APPLIES TO
| • | Windows Vista Ultimate |
| • | Windows Vista Starter |
| • | Windows Vista Home Premium |
| • | Windows Vista Home Basic |
| • | Windows Vista Enterprise |
| • | Windows Vista Business 64-bit edition |
| • | Windows Vista Business |
| • | Windows Vista Ultimate 64-bit edition |
| • | Windows Vista Home Premium 64-bit edition |
| • | Windows Vista Home Basic 64-bit edition |
| • | Windows Vista Enterprise 64-bit edition |
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kbinfo kbtshoot kbexpertiseinter KB931550 |
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