WiFi doesn’t work but it did yesterday on my MacBook air

 Many times I get this question. (The user didn’t change the WiFi configuration at home)

Usually the problem is caused by resent OS update.

Many times to fix it is to reset the NVRAM (here is more info about NVRAM: https://support.apple.com/en-us/HT204063)

1. Shutdown your computer
2. press the power button and hold these four keys until your computer makes the chaim sound twice.

3. let the computer finish booting and test the WiFi connection

High Density WiFi Deployment

   High Density WiFi Deployment

Researching options:

1. 25 Cisco access points with controler
http://www.cisco.com/en/US/products/hw/w…ducts.html
2. 25 Meraki access points with cloud based controler
http://meraki.com/products_services/enterprise
3. 25 Ruckus access points new design with 16 antennas and ZoneDirector controller hardware/ software.
600 per unit,Power injector 50, 25 aps controller 1125 4000
560 yearly support
http://www.ruckuswireless.com/enterprises/education
Controller: http://www.ruckuswireless.com/products/controllers
4. 12 Xirrus access points new design with 4,8 or 16 access points in one device with on board controller and controlled using XM-3300-CC server appliance or software version on existing server. Price ~ 750 per radio. If one unit has 4 access points the price would be 4 x 750.
http://xirrus.com/products/arrays-80211abgn.php
Controller: http://xirrus.com/products/management.php

Nice comparison of Ruckus and Cisco on tomshardware.com