Hi @Anonymous User
Would have thought a factory reset would have done the trick, by holding the small button on the stick for 6 seconds.
Somebody else on here reported the same issue on their stick and they sorted it out by either switching off the power to the stick or router for 20 minutes.
Can't remember if it was the stick or router (maybe switch them both off) then after 20 minutes switch on the router first let it go through it's boot up procedure and when finished power up the stick.