I've, historically, kept my cable/dsl/whatever modems and wireless routers on a UPS and almost always still have connectivity when the power goes out. The only

I've, historically, kept my cable/dsl/whatever modems and wireless routers on a UPS and almost always still have connectivity when the power goes out. The only exception was during a hurricane, which seemed like a fair exception in the scheme of things since power was out for most of the city for 1-2 weeks.