Update time for the name.subsonic.org redirect

Do any of the guru's that lurk over in here in the dungeons know what the update frequency of subsonic.org address is?
I am running my server with a vpn and when the IP address changes SS is no longer accessible from outside because it is redirecting to the old IP.
If I know its happened I can log on (via local lan) and hit save in settings/network which sorts it out but if I could increase the frequency of the updates say to every hour that would obviously reduce the down time.
So if anyone knows where the timer settings are stored I would be grateful
p.s. I am currently running on 4.6 (too many issues for me on 4.7 beta)
I am running my server with a vpn and when the IP address changes SS is no longer accessible from outside because it is redirecting to the old IP.
If I know its happened I can log on (via local lan) and hit save in settings/network which sorts it out but if I could increase the frequency of the updates say to every hour that would obviously reduce the down time.
So if anyone knows where the timer settings are stored I would be grateful

p.s. I am currently running on 4.6 (too many issues for me on 4.7 beta)