Ah, that makes it more likely. If it is retaining state through a reboot, then that would explain why the power cycle didn't do anything.

It still seems a bit odd that B has no issues connecting to S while A does. They both go through the same router, though one is wired and the other (B) is wireless.

I hope to get back to this, sometime this week, though I've blown it for today, so I guess it will be later on this week.