This article is one in a series to assist in the setup,
troubleshooting, and maintenance of Cisco Small Business products (formerly
Linksys Business Series).
Technical Tips Conventions for more information on document
How do I upgrade the firmware of the NSS4000/6000?
A. In order to upgrade the firmware for NSS4000/6000, follow these steps:
Go to www.cisco.com/support and download the
firmware for the specified model, in this case, NSS4000/6000.
Note: Do not extract the firmware once it is downloaded.
Login to the web interface of the storage
Fill in the administrator login information:
Once the login is successful, click
Next, click Maintenance. The System Details page
Click the Browse button to choose the firmware
that was previously downloaded.
In order to start the firmware upgrade, click the Upgrade
Firmware button. A warning message pops
Read the warning message and click the OK button
to continue with the firmware upgrade.
You see the progress screen within two minutes.
Note: Do not interfere with the firmware upgrade process. The unit
reboots automatically when the firmware upgrade is complete.
In order to determine if the firmware upgrade has been completed,
check for the last entry: Firmware update succeeded. The system will
Wait for the system to reboot. Do not power cycle the
Check the activity of the Power LED. Within the process of the
upgrade, the Power LED alternately blinks yellow and green. This process can
take about four minutes.
Then, the system reboots. The Power LED blinks green on shutdown
and on startup. Eventually, the Power LED appears as solid green again. It is
the ultimate indication that the firmware upgrade process has
The system is ready once the Power LED is back on solid green, and
LAN1 or LAN2 is solid.
Note: You possibly lost connectivity to the AD domain after the
firmware update on NSS4000. Refer to this check list:
Joined NSS to a workgroup to allow complete disassociation to
Rebooted the NSS.
Rejoined the NSS to AD but failed.
Performed the join again after verification of domain AD
account and network settings.