RIS Clients can't get IP from the DHCP server

When you deploy RIS server in the network, RIS clients may have problem to get IP from the
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DHCP server and the following error massage may appear "No DHCP Servers Available".
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However, regular clients doesn't have this problem.

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Using advanced network protocols or multi-homed client may create delay to receive
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DHCP offer message. The delay creates a timeout error, and the client is stopped from waiting to
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IP offer.
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1. Consider disable "STP" (Spanning Tree� Protocol) support on the local switches.
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2. Setup the local switch ports that doesn�t use for up-link with "PortFast" or "Fast-Start" feature enable.
���� By enable this option, you may eliminate the need to�disable "STP" (Spanning Tree Protocol) support on the
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3. Consider disable "PAgP" (Port Aggregation Protocol) support on the local switches.
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4. Change the Auto network speed detection�mechanism to manual. Configure static speed setting (For example 100 MB Full-Duplex)
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5. If you are using multi-homed computer that connect to the local network, leave only one network adapter connect to the
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6. If you are using PXE client, considerer to upgrade the PXE boot version to the latest one.
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7. Review: Your RIS client may not be able to obtain an IP address during the PXE restart on Windows Server 2003 and Windows 2000
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�������������� http://support.microsoft.com/kb/300034
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How to boot the Windows Preinstall Environment from an RIS server by using PXE-enabled clients
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http://support.microsoft.com/default.aspx?scid=kb;en-us;304992&sd=tech

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