Password Recovery Procedure for Cisco SG500 / SG300 Switches

By Aaron Ekinaka on November 16, 2016 - Tags: , , , , , - Category: Tech Support

Cisco documentation is out there for this, but searching for it generally only comes back with forum questions and responses. Here’s the consolidated information on how to easily break into a Cisco Small Business switch that has a console port. Generally this is limited to the SG300 and SG500 series switches. If you recall, the 200 series units don’t have a serial console port. This switch happens to be on SW version 1.3.0.03.

Set your serial console connection to 115000 baud, 8 data bits, no parity, 1 stop bit, no flow control, and fire up your favorite terminal program (SecureCRT, putty, etc). I’ve seen the console connection work at 9600 baud (like traditional routers and switches) but it seems to behave better at the Cisco recommended¬†115000 baud rate for these units.

Reboot the switch by unplugging the power cord. You will see a prompt during boot right after the Cisco logo made out of #s that says “Autoboot in 2 seconds – press RETURN or Esc. to abort and enter prom.”

sg500_boot_logo

Hit RETURN and you will get the following startup menu:

sg500_boot_menu

[1] Download Software
[2] Erase Flash File
[3] Password Recovery Procedure
[4] Set Terminal Baud-Rate
[5] Stack Menu
[6] System Mode menu
[7] Back

Enter your choice or press ‘ESC’ to exit:

Select “Password Recovery Procedure” by typing 3, and then hit enter

“Current Password will be ignored” will be displayed.

==== Press Enter To Continue ====

Hit Enter

It will look like the switch is doing nothing, but just wait it will boot. Once at the prompt you will need to elevate to privilege mode.

Switch>enable

Enter global configuration mode

Switch#>config

Create a new username and password combination (username can be whatever, password too)

Switch (config)#>username cisco password P@$$w0rd privilege 15
Switch (config)#>exit

Save the password into the startup config

Switch#>copy run start

That will set a new password in the running (and startup config) so that you will be able to access the switch after a reboot.

2 thoughts on “Password Recovery Procedure for Cisco SG500 / SG300 Switches

  1. David Hughes says:

    Worked line a charm! THANK YOU!!!!!!!!!!!!!!!!!!!!!

    1. You are very welcome! Glad this article helped you out.

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