DataLock software uses the internet to send and recieve data to and from the backup servers housed by Maxnet.  To ensure your backups can run successfully, please ensure that TCP port 8443 outbound is open.  If you absolutely must lock the outbound ports to specific IP addresses, please note that these are subject to change without notification, and this article may not necessaries be updated before the changes happen.  

123.100.91.13

123.100.67.93 - 123.100.67.110

You may need to make sure that settings are adjusted by any firewalls, routers or proxies running in your particular environment, or ISP proxies or filters run by your ISP (such as Telecom's School Zone or by Watchdog).