Cisco Cisco Aironet 350 Wireless Bridge Guía Para Resolver Problemas
Distance
Keep in mind that wireless devices have limitations when it comes to their range. For devices that run on 2.4
GHz, the range can go up to 100−150 feet. If your wireless network is too far from its range, consider
relocating the devices. One important thing to remember is that distance affects the signal strength. As the
distance between the AP and client increases, the signal strength decreases. In order to check if you receive
the stable connection, perform a continuous ping. If you are getting replies most of the time, this means the
connection is stable. If it times out the majority of the time, the connection is not that stable.
GHz, the range can go up to 100−150 feet. If your wireless network is too far from its range, consider
relocating the devices. One important thing to remember is that distance affects the signal strength. As the
distance between the AP and client increases, the signal strength decreases. In order to check if you receive
the stable connection, perform a continuous ping. If you are getting replies most of the time, this means the
connection is stable. If it times out the majority of the time, the connection is not that stable.
Use the command prompt on the Windows machine to issue the ping command. Click Start > Run and type
cmd to get a command prompt window. Type Ping −t X.X.X.X (IP address of the AP) on the client machine
to test the connectivity.
cmd to get a command prompt window. Type Ping −t X.X.X.X (IP address of the AP) on the client machine
to test the connectivity.
Obstructions
The RF signal tends to react to obstacles inside a building. The signals get either reflected, refracted,
diffracted or absorbed by the obstacles. Common obstacles include:
diffracted or absorbed by the obstacles. Common obstacles include:
Thick walls and ceilings
•
Metal objects
•
Glasses
•
Wooden objects
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Place the APs and clients in a location where the obstacles are minimal, or could get around the obstacles. Use
diversity antennas to get the best signal reception.
diversity antennas to get the best signal reception.
Note: Diversity is the use of two antennas for each radio, used to increase the odds that you receive a better
signal on either of the antennas.
signal on either of the antennas.
Interference
Any device or adjacent wireless network that operates in the same frequency or channel as your wireless
network can cause interference to the AP and clients. Most common devices that cause interference in 2.4 Ghz
are:
network can cause interference to the AP and clients. Most common devices that cause interference in 2.4 Ghz
are:
Neighboring wireless networks
•
Microwave ovens
•
2.4 GHz cordless telephones
•
Bluetooth devices
•
Wireless baby monitors
•
In order to solve the problem, change the channel and SSID on your AP. Preferred channels to use are 1, 6 and
11 because these are considered non−overlapping channels. Most of the devices that cause interference do not
operate in 5 Ghz. 5 Ghz has three bands of channel. Each band has 4 channels that cause a total of 12
channels. Therefore, selecting a channel free of interference is simple.
11 because these are considered non−overlapping channels. Most of the devices that cause interference do not
operate in 5 Ghz. 5 Ghz has three bands of channel. Each band has 4 channels that cause a total of 12
channels. Therefore, selecting a channel free of interference is simple.
Related Information
Wireless Support Page
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Aironet 1200 Series Access Point Installation and Configuration Guide
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Radio Coverage Options
•
Performing a Site Survey
•
Technical Support & Documentation − Cisco Systems
•