[[[ForeverAlone]]]

I have never turned it off since day 1.
Until now  still ok, touch wood firmly. 

Was also  told not necessary to off to save electricity as usage very low. 
Not sure how much we can save if off it when not using.

Is not turn off complete, i mean is turn off and on again like reset
as mention i don't know Singtel tech guy told me the default modem not say good is like CPF got ram inside sometimes if you have slow or what will reset clear the memory etc likewise same for the default modem.

He told me of course those expensive one no need like that just like once in blue moon if you noticed internet speed seem not right etc.