Unable to Lease IP Address from DHCP Server (147872)
The information in this article applies to:
This article was previously published under Q147872 SYMPTOMS
When you are using Windows 95 with a DHCP server to assign an IP address,
you may receive the following error message if DHCP messages have not been
disabled in Windows 95:
This DHCP client was unable to obtain an IP network address from a
DHCP server.
If DHCP messages have been disabled, you may not see the error message
even though an IP address was not obtained.
This error can occur if the DHCP server does not respond to a DHCP request
within two seconds.
RESOLUTIONSTATUS
This problem no longer occurs in Windows 98. To resolve this problem, install the current version of Windows. For information about the current version of Windows, visit http://www.microsoft.com/windows.
MORE INFORMATION
When requesting an IP address from a DHCP server, Windows 95 times out
the requests at two-second intervals. After a timeout, the request is re-
issued. If the timeout has expired before the server responds, the
response is discarded and the client waits for a response to its latest
request. This process continues through four retries, at which time the
error message stated above is generated.
This problem does not occur with MSTCP-32 for Windows for Workgroups
because it uses a default timeout of four seconds.
This problem is known to occur when you are using DHCP servers that
implement address protection at the server. In particular, the problem
occurs if it takes the server more than two seconds to verify whether an
address that it is preparing to issue is already in use or not.
Address protection is the process of determining whether an address is in
use by another computer before a client uses it. Note that Microsoft DHCP
clients implement address protection at the client.
| Modification Type: | Major | Last Reviewed: | 3/25/2002 |
|---|
| Keywords: | kberrmsg kbnetwork kbpolicy kbprb KB147872 |
|---|
|