3com 2816 ユーザーガイド

This chapter lists some issues that you may encounter 
while installing, using, and managing the Switch, with 
suggested courses of corrective action to take. 

If you encounter an issue that is not listed here and you 
cannot solve it, check the 3Com Knowledgebase at 

http://knowledgebase.3com.com

 before contacting 

your local technical support representative.

For more information on how to obtain support for your 
Switch, refer to Appendix A.

If you forget the password to the Web interface after 
you set it, you will need to reset the Switch to regain 
access. See “Resetting to Factory Defaults” on page 43 
for instructions. 

After resetting the Switch, log on to the Web interface 
using the default admin account settings:

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User name – 

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Password – blank (no password)

If you forget the static IP address that you assigned to 
the Switch and you need to access the Web interface, 
use the Discovery application to automatically detect the 
IP address and connect to the interface.

For information on using the Discovery application, refer 
to “Running the Discovery Application” on page 21.

This section lists some issues that are related to the LEDs 
on the front panel of the Switch. For information on 
basic LED checks, refer to the following topics in 
Chapter 1:

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There is a problem with this connection. Check that: