I believe i've heard that you do not get this if you have a Security Token active.
However, for a more immediate fix, this happens everytime you're logging in from another location, or rather, from a diffirent IP adress. My bet is that you do not have a static IP adress, which is causing the problem everytime it resets.
You could try setting a fixed IP adress instead of an automatically allocated one in your LAN's properties. Or it could just be a problem with your ISP or modem resetting itself a lot. In that case, i have no idea.
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[XI] Surivere of Valefor
[XIV] Sir Surian Bedivere of Behemoth
http://na.finalfantasyxiv.com/lodestone/character/2401553/