Wake-On-LAN delay for Backup Job

I have an older "ReadyNAS Ultra 2 Plus" running RAIDiator 4.2.28, and I have configured some backup jobs (using the 'Backup' --> 'Backup Jobs' menu item in the admin web interface). The jobs will successfully connect to specific shares on my Dell Precision laptop and perform scheduled backups of the files. 

I am, however, struggling to make this work if the laptop isn't powered on when the jobs are scheduled to start. I've checked the checkbox for the "Wake on LAN" feature (for each backup job) and added my Laptop's MAC address. I've also turned on the WOL feature in the Laptop's BIOS configuration. My problem is that the Laptop seems to wake up, but the laptop's boot process appears to be too slow for the backup jobs. They all fail with log entries like the one below: 

Is there a way to configure a x minute delay for the backup jobs between the Wake-on-LAN message and the start of the Backup job?

(I'm using a setup with a gigabit switch and wired connection (cat 6 cables) between my laptop and the ReadyNAS)

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INCREMENTAL Backup started. Thu Dec 31 10:17:07 CET 2015

Job: 001
Protocol: cifs-ab
Source: //[Laptop-Share-Here]
Destination: [backup]/*********************

Connection to [Laptop] failed (Error NT_STATUS_BAD_NETWORK_NAME)
Files copied: 0

Backup failed. Thu Dec 31 10:22:10 CET 2015.

Reason for failure:
Unable to access remote path //[Laptop-Share-Here].