Master slave configuration to be verified and below points to be validated additionally.
• Configured master agent should be online in SapphireIMS.
• Telnet should happen for 46001 port from slave agent to master agent IP/Hostname. In case master agent has multiple IP, make sure the IP address showing in SapphireIMS UI is used.
• Make sure file is downloaded in the master agent machine.
• Make sure enough disk space is available in slave machine to download the file from master agent.