Changing the switch from "managed mode" to "unmanaged mode" erases the switch configuration. Changing from "unmanaged mode" to "managed mode" activates the management GUI and sets the system back to factory defaults. There is no way to save the switch's configuration. Always good idea to be at the current firmware version. www.dell.com/.../DriverFileFormats To restore the switch to factory defaults, press the Managed Mode button for two to three seconds, and then release. It should then reboot on it's own, do not manually power cycle it. Web Interface Method Open a Web browser and connect to the switch management IP address. Type the appropriate username and password, and then click OK. In the left navigation, click the plus sign to expand System, File Management, and then Restore Defaults. Click OK in the confirmation dialog box. In the left navigation, click the plus sign to expand System, General, and then click Reset. Click Reset and then click OK on the confirmation dialog box. Reset to Factory Defaults CLI Reboot the switch, As the switch is rebooting, watch for the line to appear that says Autoboot in 2 seconds - press RETURN or Esc. to abort and enter prom., and when it does, press either or to enter the boot menu.  At the boot menu, choose [2] Erase Flash File by pressing <2> and then confirm by pressing  Hope this helps, Thanks.
Hi,  I need to swicth from managed mode to unmanaged mode on Powerconnect 2848. I pressed on mode button and restarted but still green solid light there which indicates that swicth still in managed mode. How can I make this swicth unmanaged again?  Thanks
How to switch from managed to unmanaged mode on Powerconnect 2848?