74CHAPTER 5: TROUBLESHOOTING

The Switch will perform automatic IP configu- ration after you reset it. See “Automatic IP Configuration” on page 33 for more informa- tion.

Forgotten Password

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 Fac- tory Defaults” on page 73 for instructions.

After resetting the Switch, log on to the Web interface using the default admin account set- tings:

User name – admin

Password – blank (no password)

Forgotten Static IP Address

If you forget the static IP address that you assigned to the Switch and you need to access the Web interface, use the Discovery applica- tion 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 23.

Solving LED Issues

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:

(2) Gigabit Combo Ports (RJ-45/SFP)

(3) Link/Activity Status LEDs

(5) Power LED

A link is connected, but the Link/Activity LED for the port is off.

There is a problem with this connection. Verify that:

The device being connected to is powered on and operating correctly.

The cable is connected at both ends.

The cable is not damaged.

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3Com 3C16491 manual Forgotten Password, Forgotten Static IP Address, Solving LED Issues