Usb Device Problems - ZyXEL Communications NBG4615 User Manual

• Building Materials: metal doors, aluminum studs.
• Electrical devices: microwaves, monitors, electric motors, cordless phones, and other wireless
devices.
To optimize the speed and quality of your wireless connection, you can:
• Move your wireless device closer to the AP if the signal strength is low.
• Reduce wireless interference that may be caused by other wireless networks or surrounding
wireless electronics such as cordless phones.
• Place the AP where there are minimum obstacles (such as walls and ceilings) between the AP and
the wireless client.
• Reduce the number of wireless clients connecting to the same AP simultaneously, or add
additional APs if necessary.
• Try closing some programs that use the Internet, especially peer-to-peer applications. If the
wireless client is sending or receiving a lot of information, it may have too many programs open
that use the Internet.
• Position the antennas for best reception. If the AP is placed on a table or floor, point the antennas
upwards. If the AP is placed at a high position, point the antennas downwards. Try pointing the
antennas in different directions and check which provides the strongest signal to the wireless
clients.

30.7 USB Device Problems

I cannot access or see a USB device that is connected to the NBG4615.
Be sure to install the ZyXEL NetUSB Share Center Utility (for NetUSB functionality) first from the
1
included disc, or download the latest version from the zyxel.com website.
Disconnect the problematic USB device, then reconnect it to the NBG4615.
2
Ensure that the USB device has power.
3
Check your cable connections.
4
Restart the NBG4615 by disconnecting the power and then reconnecting it.
5
If the USB device requires a special driver, install the driver from the installation disc that came
6
with the device. After driver installation, reconnect the USB device to the NBG4615 and try to
connect to it again with your computer.
If the problem persists, contact your vendor.
7
What kind of USB devices do the NBG4615 support?
NBG4615 User's Guide
Chapter 30 Troubleshooting
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