But it is difficult every time to reconfigure. So many time without any reason it goes to standby ...
I am living in Ghaziabad in an apartment complex, the power cuts are very regular case in summer times.
My device does get reset if their was a power supply issue very frequently that means 3 to 4 times, I also find that if my router is on for longer duration in this period it often crashes. So necessarily switch off the router once a day.
This happened couple of times only. But if you are facing this problem on a regular basis then you should get it checked with the service center immediately.