ERROR_DHCP_SUBNET_NOT_PRESENT 20005 The specified subnet does not exist on the DHCP server.

02/04/2017

Question

_{Saturday, February 4, 2017 6:12 PM}

HI,

I am getting error ERROR_DHCP_SUBNET_NOT_PRESENT error code 20005 “The specified subnet does not exist on the DHCP server” while replicating scope.

I have installed new DHCP server 2012 and configure DHCP failover but one scope is not replicating to DHCP failover partner server and getting error code 20005 “The specified subnet does not exist on the DHCP server”

Please see the below screenshot and help me to get the solution.

All replies (5)

_{Sunday, February 5, 2017 3:13 AM}

Anything more detailed in the event logs right after trying to setup the failover relationship?

Brian Baldock | MCTS | MS | MCP

Please note: This post is provided as is with no guarantee.

Test, then test again.

_{Sunday, February 5, 2017 12:00 PM}

Hello.

In order for this configuration to work your DHCP server should have the subnet that will be replicated to it configured in one of it's nic cards.

Can you please give us more details about your configuration in order to help you on this?

The configuration KB for DHCP failover is below:

https://msdn.microsoft.com/pt-br/library/dn338978%28v=ws.11%29.aspx?f=255&MSPPError=-2147217396

_{Monday, February 6, 2017 5:38 AM}

Hi Lmtiyaz,

How many scopes did you have replicated?

>>The specified subnet does not exist on the DHCP server

Please check which subnet is difference from source DHCP server and destination DHCP server.

Best Regards

John

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_{Monday, February 6, 2017 6:56 AM}

Thanks everyone for reply, My issue has resolved as I followed below steps.

1. Delete the exist failover relationship

2. Than configure new failover between both servers.

Actually somebody from my team had excluded the scope while configuring failover so simply I deleted the old failover and configure it again and my issue is resolved.

Thanks again guys for your efforts.

_{Tuesday, February 7, 2017 10:16 AM}

Hi Imtiyaz,

Glad to hear that your issue is successfully resolved, and thanks for your sharing.