Allied Telesis AR700 SERIES Software Release 2.7.1 - Manual (Page 42)

42 AR700 Series Router User Guide
Software Release 2.7.1
C613-02047-00 REV A
■ Check that the router’s link to the LAN is functioning, by checking the
interface status (Monitoring) and that the link LED is lit (see
“Traffic Flow”
on page 41 ).
Time and NTP
Diagnosis The router’s time is displayed on the Configuration > System > Time tab. It will
also be included in log packets.
Problem The router’s time does not change, even though you entered the correct time.
Solution Changing the time is a 3-step process. Select Configuration > System > Time.
First, enter a time that is very shortly in the future (e.g. 20 seconds later than
the current time). Then check Set time. Then wait until precisely the time you
have entered, and click Apply.
Problem The router is not assigning the time to devices on the LAN.
Solutions ■ Check NTP is enabled (Configuration > System > Time).
■ Check that the NTP peer’s IP address is entered correctly.
■ Check that the NTP peer can reach the router, by pinging the router from
the NTP peer.
■ Check that the router’s link to the LAN is functioning. See “Traffic Flow”
on page 41 .
Problem The router’s clock does not synchronise with the NTP peer.
Solution ■ The router’s clock can only synchronise with the NTP peer if its initial time
is similar to the NTP peer’s time (after setting the UTC offset). Manually
set the router’s time so that it is approximately correct, and enable NTP
again.
■ Check that the UTC offset is correct.
Problem The router’s time is incorrect, even though it assigns the correct time to
devices on the LAN.
Solution The UTC offset is probably incorrect, or needs to be adjusted for the beginning
or end of summer time. To correct this, select Configuration > System > Time
and enter the correct offset.
Loading Software
Problem You have attempted to load a new release file onto the router, but the load
has failed and you cannot access the router through the GUI.
Solution 1. Access the router’s CLI (see “Connecting a Terminal or PC” on page 14 ).
If the router has been switched off or has rebooted since you attempted to
load the release file, it will boot up with the default installation. This
contains the commands you require to load a file.
Log into the router using the manager account and password.
2. Download the release file to the router. See “Example: Upgrade to a New
Software Release Using TFTP” on page 56 for an example.