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Home > Success Center > Archive > 2017December18 - Deletes > Some Scopes Could Not be Added Because They do Not Fit Cleanly Into the Available Subnet Space

Some Scopes Could Not be Added Because They do Not Fit Cleanly Into the Available Subnet Space

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Created by Con Finucane, last modified by Jessica Solis on Dec 18, 2017

Views: 676 Votes: 1 Revisions: 4


When trying to add a DHCP scope to IPAM, the following error message is received:


Some scopes could not be added because they do not fit cleanly into the available subnet space.


All IPAM versions


The subnets have been added and need to be investigated.



  • Consult your System Administrator before performing the following procedure.
  • SolarWinds strongly recommends that you only edit the IPAM.BusinessLayer.log file as instructed. Any additional modifications may result in system performance issues or may create an error state.
  • Save a copy of the original IPAM.BusinessLayer.log file to your local drive as a backup file, in case you need to roll back later.
  1. Check the IPAM logs at :\ProgramData\Solarwinds\Logs\IPAM\IPAM.BusinessLayer.log.
  2. Go to Start > All Programs > Solarwinds Orion > Advanced Features > Database Manager > Add Default Server.

  3. Expand the Solarwinds Database (default) SolarWindsOrion.

  4. Select IPAM_Group table.

  5. Right-click Query Table.

  6. Check the Address Column for IP address that overlap with the scope.

  7. Select *  FROM [dbo].[IPAM_Group] where address like %IPAddress%. 

  8. Insert the IP address you prefer in IPAddress.

  9. Save and close.

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