19216811.liveDiagnostics and Troubleshooting
161
AC1900, N900, and N450 WiFi
Cable Data Gateways
enabled.) For more information, see
View or Change the Basic Settings for the Main WiFi
Network
on page
31.
•
Does your WiFi device support the security that you are using for your WiFi network
(WPA2-PSK [AES] or WPA-PSK [TKIP] + WPA2-PASK [AES])? For information about
changing the WiFi security, see
View or Change the Basic Settings for the Main WiFi
Network
on page
31.
Note:
If you want to change the WiFi settings for the cable data gateway,
use an Ethernet cable to connect a computer to a LAN port on the
cable data gateway and then log in to the cable data gateway.
If your WiFi device finds your network but the signal strength is weak, check these conditions:
•
Is your cable data gateway too far from your WiFi device or too close? Place your WiFi
device near the cable data gateway but at least 6 feet (about 2 meters) away and see
whether the signal strength improves.
•
Are objects between the cable data gateway and your WiFi device blocking the WiFi
signal?
TCP/IP Network Not Responding
Most TCP/IP terminal devices and routers provide a ping utility for sending an echo request
packet to the designated device. The device responds with an echo reply to tell whether a
TCP/IP network is responding to requests.
Test the LAN Path to Your WiFi Cable Data Gateway
You can ping the cable data gateway from your computer to verify that the LAN path to your
cable data gateway is set up correctly.
To ping the cable data gateway from a Windows computer:
1.
From the Windows taskbar, click the
Start
button and select
Run
.
2.
In the field provided, type
ping
followed by the IP address of the cable data gateway, as in
this example:
ping 192.168.0.1
3.
Click the
OK
button.
A message such as the following one displays:
Pinging <IP address> with 32 bytes of data
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx