Geofrancis is correct. Also if you expect a lot of businesses to use your restaurant as a meeting place you may not want to cut your B/W. Some of those may need to have clients watch a video demonstration or stream a conference. I've seen lots of people do this at coffee shops or diners like Bob Evans or Denny's.
The AP20000G I indicated above does have access scheduling to shut off the AP after business hours.
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