I would think that's a cocoincidence - I think it would affect the router performance rather than profile.
my profile took a hit due to somee faults . It took 9 weeks to return.
However, now it's slightly higher that it had been. As with you it had been stable for a long time .
as painful as it sounds patience is the key after the faults have been resolved.
Profile drop occurred after that update, although at the same time as the power cuts, just trying to be thorough
its impossible to say what role the firmware update or the power cuts play in this issue as you dont have all the information
all you can do is wait and see
@Bullitt, its not what I normally get, so I dont see what your implying?
Roger, I will be outside your house first thing on Friday the 1st feb if not