Cnet CWR-901 Mode D'Emploi

 

54

Symptom 

Possible Causes 

Things to Do 

• Incorrect or incompatible 
wireless network configuration. 
For example, shared key 
authentication is configured on 
the wireless AP/Router and the 
wireless client is attempting 
open system authentication 
   
• Inadvertent media access 
control (MAC) address filtering
   
• The wireless network name 
is not visible 
 

• Verify that the wireless 
network configurations 
between the wireless client 
and wireless AP/Router are 
compatible. Make sure that the 
client system’s network card is 
set to receive IP automatically.
 
•Use “Ipconfig” utility to verify 
that the client is getting an IP 
address from the router: 
 
1. Click Start > Programs and 
select Command Prompt. 
2. Type ipconfig /all at the 
command prompt.   
3. With default settings on the 
router, client should get an IP 
address in the range of 
192.168.1.XX with a default 
gateway IP of 192.168.1.254.

• The wireless AP/Router and 
wireless network adapter are 
not using the same 802.11 
standard (for example, you are 
using an 802.11a network 
adapter and a 802.11g 
wireless AP/Router) 
 

• Use the same 802.11 
standard for wireless 
AP/Router and wireless 
network adapter. 
 

• Radio frequency (RF) 
interference from nearby 
devices such as cordless 
phones and Bluetooth devices
 

• Remove the device causing 
the interference. 
 

• Wireless client is at the 
periphery of the RF range of 
the wireless AP/Router 
 

• Move the wireless client 
closer or re-locate the wireless 
AP/Router. 
 

• Improperly functioning or 
outdated wireless network 
adapter driver 
 

• Obtain and install the most 
recent version of the wireless 
network adapter driver. 
 

Inability to access the router 

• Cable failure (when wired to 
the router) 
 

• Check the “Link” LED next to 
the port on the router. Make 
sure that Ethernet cables are 
connected properly.