User guide

Appendix A
Troubleshooting
46
Media Hub
Click 2. OK.
Security Error: Domain Name Mismatch
The Media Hub is using Increase Space: Linear 2 mode.
On the Media Hub with LCD (NMH400 Series), the LCD
screen displays an alert indicating that one of the hard
disks has failed.
On the Media Hub (NMH300 Series), one of the Disk LEDs
is not lit.
NOTE: Linksys does not support data recovery
after hard disk failure.
Before You Begin
Check which hard disk is defective. In the Current RAID
Setting section of the Disk screen, the Slot A setting
displays the status of the hard disk in Slot A, which is on
the left when you view the front panel of the Media Hub.
The Slot B setting displays the status of the hard disk in
Slot B, which is on the right.
Instructions
To shut down the Media Hub, press and hold the power 1.
button until the power LED starts flashing.
If this step does not shut down the Media Hub, then
proceed to step 2.
Disconnect the power adapter from the Power port.2.
To release the drive bay cover, push the button on the 3.
top panel.
To remove the defective disk, push together the clips 4.
of its drive bay, and then pull out the drive bay.
Remove the defective disk from its drive bay.5.
NOTE: Do not install a replacement hard disk at
this time. The Media Hub must revert to single
disk mode before you can install a second hard
disk.
Push down on the hard disk to make sure the 6.
connectors are securely seated.
Lower the cover, and push it down to secure it.7.
Connect the power adapter to the Power port.8.
Access the web-based utility of the Media Hub. (Refer 9.
to Chapter 7: Advanced Configuration, page 35.)
On the 10. Media Browser screen, click Configuration.
Enter your password, and then click 11. Submit.
Click the 12. Disk tab.
Click 13. Revert to Single Disk Mode.
Please wait until the Media Hub automatically reboots.
Then the Media Hub will be ready for use.
WARNING: When a hard disk fails in Increase
Protection: Linear 2 mode, not all data may be
recovered.
NOTE: If you want to install a second hard disk,
then refer to Install a Second Hard Disk, page
3 for instructions.
The Media Hub is using Increase Protection: RAID 1
mode. One of the hard disks has failed.
NOTE: Linksys does not support data recovery
after hard disk failure.
Before You Begin
Check which hard disk is defective. In the Current RAID
Setting section of the Disk screen, the Slot A setting
displays the status of the hard disk in Slot A, which is on
the left when you view the front panel of the Media Hub.
The Slot B setting displays the status of the hard disk in
Slot B, which is on the right.
WARNING: The replacement hard disk must be
blank; otherwise, the Media Hub cannot use it.
NOTE: Although the Media Hub will work with
only one disk, Linksys highly recommends
that you replace the defective disk to ensure
continued data protection.
Instructions
To shut down the Media Hub, press and hold the power 1.
button until the power LED starts flashing.
If this step does not shut down the Media Hub, then
proceed to step 2.
Disconnect the power adapter from the Power port.2.
To release the drive bay cover, push the button on the 3.
top panel.