The IP address that the _Symantec_netBoot_Interface Service is attempting to create a socket connection on is not the correct IP address for the server on which it's attempting to run.
This is most common when the Server's IP address was changed for some reason.
In the SBS directory (default "C:\Program Files\Altiris\Altiris Agent\Agents\Deployment\Task Handler\SBS") find the file "initialPXEConfigPath.txt".
In this file locate the following lines:
Status=Configuration
Server_Listeners="XXX.XXX.XXX.XXX"
Mtftp_Listeners="XXX.XXX.XXX.XXX"
Change the IP address values to the correct IP address of that server.
If the lines are not in existence, add them to the file. The resulting file should have the following entries (with the approriate IP addresses for your systems). If 'Server_Ukn_Enabled = True', two additional lines will be added to the end of the file.
Status=Configuration
Server_Log_Enabled=False
Mtftp_Log_Enabled=False
Helper_Log_Enabled=False
iFace_NS_Log_Enabled=False
ParsePxe_Log_Enabled=False
PxeOpts_Log_Enabled=False
FilterIP_Log_Enabled=False
FilterMAC_Log_Enabled=False
FilterUUID_Log_Enabled=False
Server_Ukn_Enabled=False
Server_Listeners="169.254.128.191"
Server_EnabledParsers="SbsParsePxe"
Mtftp_MTUSize=1456
Mtftp_Root_Folder=C:\Program Files\Altiris\Altiris Agent\Agents\Deployment\Task Handler\SBS\Images
Mtftp_Listeners="169.254.128.191"
Mtftp_MaxTransfers=200
Applies To
DS 7.1
Server with net boot (PXE) services installed