Not a book, but Beersmith has a bunch of recipes.
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Shouldn't be the router since I am surfing now on my iPad on the same router. That said, I have restarted the router several times today.
That doesn't matter. I think the first thing you should do is shut down both your router and PC and wait a few minutes. Then reboot the router, a minute later the PC. That will force a resync. A cheap and easy test before you do anything radical.