3Com 2816-SFP Plus (3C16485) User Manual page 43

at least 5 seconds, or when the LED flashes, release the recovery
button. The Switch will now enter fail safe mode, whereby the
Switch's IP address, user name and password will be reset to the
factory defaults.
4 Click on the RESTART THE SWITCH button.
Restore the configuration file that you backed up in step 1. Refer
5
to "Configuration" on page 33 for details.
If the problem persists...
If the problem persists and the unit still does not operate
successfully, contact your supplier with the following information
before returning the unit:
Product number and serial number (printed on a label
supplied with the unit).
A brief description of the fault.
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