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DHCP and win95!!!

Posted on 2000-03-02
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Last Modified: 2010-04-14
I have got a win2k Server and two clients: one with win98 and the other with win95. On the win98 client the DHCP Server works fine, it gives an ip to the client. But on the win95 client, I configured it  exactly the same way, there is always a message, that the client couldn't get any IP from the DHCP server. Any solutions?
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Question by:macswiss
8 Comments
 
LVL 95

Expert Comment

by:Lee W, MVP
ID: 2578974
They're not separated by a router are they?
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Author Comment

by:macswiss
ID: 2579097
No they are not!
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Expert Comment

by:Lermitte
ID: 2579920
Can you manuel add a IP adres and then ping the DHCP server.

Mario
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Expert Comment

by:sgenther
ID: 2581213
Try this:
PSS ID Number: Q147872
Article last modified on 06-30-1999
 
95
 
WINDOWS
 

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:
 
 - Microsoft Windows 95
-------------------------------------------------------------------------------
 
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.
 
RESOLUTION
==========
 
This issue is resolved by the following updated file for Windows 95, and later
versions of this file:
 
   VDHCP.386  version 4.00.951  dated 2/12/96  27,985 bytes
 
The updated version of this file is included in the Windows Sockets 2.0 update
for Windows 95. For information on obtaining this update, see the following
article in the Microsoft Knowledge Base:
 
   Q182108 Availability of Windows Sockets 2.0 for Windows 95
 
STATUS
======
 
Microsoft has confirmed this to be a problem in Microsoft Windows 95. An update
to address this problem is now available, but is not fully regression tested and
should be applied only to computers experiencing this specific problem. Unless
you are severely impacted by this specific problem, Microsoft does not recommend
implementing this update at this time. Contact Microsoft Technical Support for
additional information about the availability of this update.
 
This issue is resolved in Microsoft Windows 98.
 
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.
 
For additional information about issues resolved by updates to this component,
please see the following articles in the Microsoft Knowledge Base:
 
   Q158713 Fatal Exception Error Using DHCP
 
   Q147872 Unable to Lease IP Address from DHCP Server
 
   Q140460 Dial-Up Networking Does Not Obtain an IP Address
 
For additional information about Windows 95 updates, please see the following
article in the Microsoft Knowledge Base:
 
   Q161020 Implementing Windows 95 Updates
 
Additional query words: tcp/ip tcp protocol
 
======================================================================
Keywords          : kberrmsg kbnetwork kbpolicy win95 kbfixlist
Version           : 95
Platform          : WINDOWS
Issue type        : kbprb
=============================================================================
Copyright Microsoft Corporation 1999.


 
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LVL 6

Expert Comment

by:sgenther
ID: 2581230
Goto http:\\windowsupdate\microsoft.com and load the year 2000 update to resolve this issue.
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Expert Comment

by:sgenther
ID: 2581234
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LVL 6

Accepted Solution

by:
sgenther earned 100 total points
ID: 2581260
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Author Comment

by:macswiss
ID: 2584551
I already tried to update the winsock files (not only once :-)). It doesn't help at all. But I think I will now install the win98 instead of the win95...... too bad because the win95 seemed to be pretty fast....
Anyway I will give the points to sgenther because he tried to give me a very detailed solution.
Thanks
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