ZyXEL Communications P-660H-61 User Manual page 284

Chapter 27 Troubleshooting
If you are trying to access the Internet wirelessly, make sure the wireless settings in the wireless
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client are the same as the settings in the AP.
If you are trying to access the Internet wirelessly, make sure you enabled the wireless LAN and
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have selected the correct country and channel in which your ZyXEL Device operates in the
Wireless LAN > AP screen.
Disconnect all the cables from your device, and follow the directions in the Quick Start Guide again.
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If the problem continues, contact your ISP.
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I cannot access the Internet anymore. I had access to the Internet (with the ZyXEL Device),
but my Internet connection is not available anymore.
Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick
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Start Guide and
Turn the ZyXEL Device off and on.
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If the problem continues, contact your ISP.
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The Internet connection is slow or intermittent.
There might be a lot of traffic on the network. Look at the LEDs, and check
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285. 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.
Check the signal strength. If the signal strength is low, try moving your computer closer to the
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ZyXEL Device 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).
Turn the ZyXEL Device off and on.
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If the problem continues, contact the network administrator or vendor, or try one of the advanced
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suggestions.
Advanced Suggestions
• 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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Section 28.1 on page 285.
Section 28.1 on page
ADSL Router Series User's Guide