CAnet: Error 64 when deploying OS Image. The specified network name is no longer available.

Document ID : KB000006117
Last Modified Date : 14/02/2018
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For no apparent reason, deploying an OSImage from a particular boot server fails with 

CAnet: Error 64 
The specified network name is no longer available. 
Warning DSM agent package is not availabe on \Servername\sxpsetup-11 
Error: OS image share \\Servername\imagename-11\is not available. 
Press any key to continue 
Error: can't use the OSIM boot parameter in c:\canpc.dat. 

This was working fine and nothing has been changed in OSIM.

  • The server is controlled by a Network Access Control NAC Server. 
  • The configuration for this server has been changed in the NAC and the shares were blocked
  • Unblock the shares in the NAC