3com 3C16491 Manuel D’Utilisation
5
T
ROUBLESHOOTING
This chapter lists some issues that you may
encounter while installing, using, and manag-
ing the Switch, with suggested courses of cor-
rective action to take.
encounter while installing, using, and manag-
ing the Switch, with suggested courses of cor-
rective action to take.
If you encounter an issue that is not listed here
and you cannot solve it, check the 3Com
Knowledgebase at
and you cannot solve it, check the 3Com
Knowledgebase at
http://knowledgebase.3com.com
before
contacting your local technical support
representative.
representative.
Resetting to Factory Defaults
If the Switch does not operate normally or if
the firmware becomes corrupted, you can reset
the Switch to factory defaults.
the firmware becomes corrupted, you can reset
the Switch to factory defaults.
CAUTION: Resetting the Switch to factory
defaults erases all your settings. You will need
to reconfigure the Switch after you reset it.
defaults erases all your settings. You will need
to reconfigure the Switch after you reset it.
To reset the Switch to its factory defaults:
1
Using the tip of a pen (or a similar object), press
the Recovery button on the rear panel of the
Switch. See
the Recovery button on the rear panel of the
Switch. See
for illustration.
2
Power off the Switch, and then power it back
on, while keeping the Recovery button pressed.
on, while keeping the Recovery button pressed.
3
Release the Recovery button.
4
Reset the Switch either by:
■
Accessing the Web interface using Discov-
ery, and then pressing the RESET button on
the Initialize tab of the Administration
menu. After you click RESET, a confirmation
message appears. Click OK to confirm.
ery, and then pressing the RESET button on
the Initialize tab of the Administration
menu. After you click RESET, a confirmation
message appears. Click OK to confirm.
■
Powering off the Switch, and then powering
it back on.
it back on.