ZyXEL Communications P-661H-61, Руководство пользователя, Страница: 270 / 404

Chapter 26 Troubleshooting
P-661HNU-Fx User’s Guide
270
26.5 Wireless Internet Access
What factors may cause intermittent or unstabled wireless connection? How can I
solve this problem?
The following factors may cause interference:
• Obstacles: walls, ceilings, furniture, and so on.
• 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.
What wireless security modes does my ZyXEL Device support?
Wireless security is vital to your network. It protects communications between
wireless stations, access points and the wired network.
The available security modes in your ZyXEL device are as follows:
• WPA2-PSK: (recommended) This uses a pre-shared key with the WPA2
standard.
• WPA-PSK: This has the device use either WPA-PSK or WPA2-PSK depending on
which security mode the wireless client uses.