Melodramatic, corsetted mistress of the obscure
How quick is the flashing?
And powering-off/on (known as "Bouncing" in help-desk parlance) seems to be what you've been doing... And is a GREAT tactic with these things, really. (It's the first thing they tell us to do)
If it's a slow or steady flash, then you might have a discontinued service of some sort. call your provider and go whafuck?