Chapter 21 Troubleshooting

1Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide.

2Make sure you entered your ISP account information correctly in the wizard. These fields are case-sensitive, so make sure [Caps Lock] is not on.

3If you are trying to access the Internet wirelessly, make sure the wireless settings in the wireless client are the same as the settings in the AP.

4Disconnect all the cables from your device, and follow the directions in the Quick Start Guide again.

5If the problem continues, contact your ISP.

I cannot access the Internet anymore. I had access to the Internet (with the ZyXEL Device), but my Internet connection is not available anymore.

1Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.5 on page 31.

2Reboot the ZyXEL Device.

3If the problem continues, contact your ISP.

The Internet connection is slow or intermittent.

1There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.5 on page 31. If the ZyXEL Device is sending or receiving a lot of information, try closing some programs that use the Internet, especially peer-to-peer applications.

2Check the signal strength. If the signal strength is low, try moving the ZyXEL Device closer to the AP if possible, and look around to see if there are any devices that might be interfering with the wireless network (for example, microwaves, other wireless networks, and so on).

3Reboot the ZyXEL Device.

4If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions.

Advanced Suggestions

Check the settings for bandwidth management. If it is disabled, you might consider activating it. If it is enabled, you might consider changing the allocations.

Check the settings for QoS. If it is disabled, you might consider activating it. If it is enabled, you might consider raising or lowering the priority for some applications.

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ZyXEL NBG-334SH User’s Guide