ZyXEL Communications G-570U, User Manual

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ZyXEL G-570U User’s Guide
100 Chapter 8 Troubleshooting
8.3 Problems with the WLAN Interface
8.4 Problems with the Ethernet Interface
Table 30 Troubleshooting the WLAN Interface
PROBLEM CORRECTIVE ACTION
I cannot access the
G-570U from the
WLAN.
Make sure the wireless adapter on the wireless station is working properly.
Check that both the G-570U and your wireless station are using the same
ESSID, channel and security settings.
I cannot ping any
computer on the
WLAN.
Make sure the wireless adapter on the wireless station(s) is working properly.
Check that both the G-570U and wireless station(s) are using the same ESSID,
channel and security settings.
I have tried to set up
OTIST, but cannot
connect to an access
point.
When OTIST is complete, the A and G LEDs flash simultaneously while the G-
570U tries to connect to an AP. If the LEDs continue to flash, the G-570U has
not made a connection.
Make sure that OTIST is set up correctly on both the AP and the G-570U. All
settings must be the same on both devices.
Ensure that the AP and the G-570U are not receiving radio signal interference
and are within range. Move the devices closer together and away from any
sources of interference, such as microwave ovens, Bluetooth devices and other
radio transmitters.
Restart OTIST on both devices.
Table 31 Troubleshooting the Ethernet Interface
PROBLEM CORRECTIVE ACTION
I cannot access the
G-570U from the
LAN.
If the ETHN LED on the front panel is off, check the Ethernet cable connection
between your G-570U and the Ethernet device connected to the ETHERNET
port.
Check for faulty Ethernet cables.
Make sure your computer’s Ethernet adapter is installed and working properly.
Check the IP address of the Ethernet device. Verify that the IP address and the
subnet mask of the G-570U, the Ethernet device and your computer are on the
same subnet.
I cannot ping any
computer on the
LAN.
If the ETHN LED on the front panel is off, check the Ethernet cable connections
between your G-570U and the Ethernet device.
Check the Ethernet cable connections between the Ethernet device and the
LAN computers.
Check for faulty Ethernet cables.
Make sure the LAN computer’s Ethernet adapter is installed and working
properly.
Verify that the IP address and the subnet mask of the G-570U, the Ethernet
device and the LAN computers are on the same subnet.