Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 35)

System error message indicates problem
Device connected to the port is not working
Action
1. Enter the System Setup program and ensure that the USB ports are enabled (see "Using the System Setup Program" in
the User's Guide for instructions).
2. Turn off the system and any USB devices.
If there is only one USB device connected to the system, go to step 5.
3. Disconnect all USB devices, and connect the malfunctioning device to the other port.
4. Turn on the system and the reconnected device.
If the problem is resolved, the USB port may be defective (see " Getting Help " for instructions on obtaining technical
assistance).
5. If possible, swap the interface cable with a known working cable.
If the problem is resolved, the interface cable must be replaced (see " Getting Help " for instructions on obtaining
technical assistance).
6. Turn off the system and the USB device, and swap the device with a comparable device.
7. Turn on the system and the USB device.
If the problem is resolved, the USB device must be replaced. If the problem is not resolved, see " Getting Help " for
instructions on obtaining technical assistance.
Troubleshooting the NICs
Problem
A NIC cannot communicate with the network
Action
1. Check the appropriate indicator on the NIC connector (see Figure 2-6 ).
A green indicator shows that the adapter is connected to a valid link partner. A blinking amber indicator shows that
network data is being sent or received.
If the link indicator is not on, check all cable connections.
Try changing the auto-negotiation setting, if possible.
Try another port on the switch or hub.
If you are using a NIC expansion card instead of the integrated NICs, see the documentation for the NIC card.
2. If the indicator does not light, the network driver files might be damaged or deleted. Check the drivers, and remove
and reinstall the drivers, if applicable.
You must reboot your system for the reinstalled drivers to become active.