Extreme Networks Altitude 4700 Series Product Reference Manual page 111

To manage clock synchronization on the access point:
1 Select System Configuration > Date/Time from the access point menu tree.
2 From within the Current Time field, click the Refresh button to update the time since the screen was
displayed by the user.
The Current Time field displays the current time based on the access point system clock. If NTP is
disabled or if there are no servers available, the system time displays the access point uptime
starting at 1970-01-01 00:00:00, with the time and date advancing.
3 Select the Set Date/Time button to display the Manual Date/Time Setting screen.
This screen enables the user to manually enter the Access Point's system time using a
Year-Month-Day HH:MM:SS format.
This option is disabled when the Enable NTP checkbox has been selected, and therefore should be
viewed as a second means to define the Access Point system time.
4 If using the Manual Date/Time Setting screen to define the Access Point's system time, refer to the
Time Zone field to select the time used to use as complimentary information to the information
entered within the Manual Date/Time Setting screen.
CAUTION
If using the RADIUS time-based authentication feature to authenticate Access Point user permissions,
ensure UTC has been selected from the Time Zone field. If UTC is not selected, time based authentication will
not work properly. For information on configuring RADIUS time-based authentication, see
Permissions by Group" on page
Altitude 4700 Series Access Point Product Reference Guide
259.
"Defining User Access
111