WiFi Widget Not Showing [SOLVED]

Thanks for the replies. Double checked those settings which Stefan wrote, rebooted and the WiFi icon / Network Connections icon still did not appear.  So I checked Shelf->Contents, and sure enough SysTray was not loaded/selected.

Write-up and images below are for other users who might be experiencing similar issue:

Solution:

1. Right click on clock (or another systray icon)
2. Mouse over to SHELF -> CONTENTS
3. Select SYSTRAY (make sure green dot is active)

Image Links:

• i.imgur.com/jc0b3U0.jpg
  and
  i.imgur.com/uOrQ464.jpg