35

Troubleshooting

This chapter covers potential problems and possible remedies.

Problems Starting Up the Switch

Table 87 Troubleshooting the Start-Up of Your Switch

PROBLEM

CORRECTIVE ACTION

None of the LEDs

Check the power connection and make sure the power source is turned on.

turn on when you

 

If the error persists, you may have a hardware problem. In this case, you should

turn on the switch.

 

contact your vendor.

Problems Accessing the Switch

Table 88 Troubleshooting Accessing the Switch

PROBLEM

CORRECTIVE ACTION

I cannot

Make sure the ports are properly connected.

access the

You may have exceeded the maximum number of concurrent Telnet sessions. Close

switch using

other Telnet session(s) or try connecting again later.

Telnet.

Check that you have enabled Telnet service access. If you have configured a secured

 

 

client IP address, your computer’s IP address must match it. Refer to the chapter on

 

access control for details.

 

 

I cannot

The administrator username is “admin”. The default administrator password is “1234”.

access the

The username and password are case-sensitive. Make sure that you enter the correct

web

password and username using the proper casing. If you have changed the password

configurator.

and have now forgotten it, you will need to upload the default configuration file. This

 

restores all of the factory defaults including the password.

 

Check that you have enabled web service access. If you have configured a secured

 

client IP address, your computer’s IP address must match it. Refer to the chapter on

 

access control for details.

 

Your computer’s and the switch’s IP addresses must be on the same subnet.

 

See the following section to check that pop-up windows, JavaScripts and Java

 

permissions are allowed.

 

 

 

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GS-3012/GS-3012F User’s Guide