Troubleshooting

In this section

 

Forgotten administrator user name and password that was configured on the switch......................................

47

Health LED on the switch is not on ............................................................................................................

47

Health LED on the switch stays amber for more than 30 seconds and switch does not boot .............................

48

No link LED appears, even after plugging the Category 5 cable in the RJ-45 connector of the external port ......

48

Cannot access the switch serial console interface using null modem connection from a PC Terminal Emulation

 

Program................................................................................................................................................

48

Error message that the switch failed to complete the system self-testing appears on the serial console screen.....

48

The switch fails to get its IP settings from the BOOTP server, even though by default it is configured for BOOTP 49

The keyboard locks up when using HyperTerminal to log on to the switch through the console interface ...........

49

Cannot connect to the switch console interface remotely using Telnet............................................................

49

Password is not accepted by the switch using the remote console interface immediately after a reboot.............

49

Cannot connect to the switch console interface remotely using SSH..............................................................

49

Cannot connect to the switch SNMP interface............................................................................................

50

The port activity LEDs continuously indicate activity after connecting more than one port to another switch or

 

destination device ..................................................................................................................................

50

Cannot connect to the switch remotely using the Web interface ...................................................................

50

Cannot enable a port in multiple VLANs while configuring VLANS...............................................................

51

The switch does not let the user enable two adjacent ports into two different VLANs while assigning the ports to

 

VLANs ..................................................................................................................................................

51

While using TFTP to download firmware, the switch fails to connect to the TFTP server, or after connection the

 

download fails.......................................................................................................................................

51

The switch fails to connect to the TFTP server while using TFTP to download or upload a configuration file, or after

connection the download or upload fails...................................................................................................

51

The console screen displays a message to change the baud rate for the terminal emulation session for XModem

 

transfer after forcing the switch into the download mode, and does not display CCCC... ...............................

52

The download fails after starting to download the firmware file ...................................................................

52

The switch configuration is corrupt ...........................................................................................................

52

Forgotten administrator user name and password that was

configured on the switch

 

Action:

 

Call HP technical support at 1-800-652-6672, or call a service representative to get a backdoor

 

password.

 

Health LED on the switch is not on

 

Action:

 

The switch is not seated properly. Be sure that the switch is inserted completely and seated properly.

Troubleshooting 47