ZyXEL Communications P-660RU-T1 v3, User Manual, Page: 166 / 230

Chapter 25 Troubleshooting
P-660RU-Tx v3 User’s Guide
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2 Make sure you entered your ISP account information correctly in the wizard. These
fields are case-sensitive, so make sure [Caps Lock] is not on.
3 If 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.
4 Disconnect all the cables from your device, and follow the directions in the Quick Start
Guide again.
5 If the problem continues, contact your ISP.
V
I cannot access the Internet anymore. I had access to the Internet (with the
ZyXEL Device), but my Internet connection is not available anymore.
1 Check the hardware connections, and make sure the LEDs are behaving as expected. See
the Quick Start Guide and
Section 1.5 on page 29 .
2 Turn the ZyXEL Device off and on.
3 If the problem continues, contact your ISP.
V
The Internet connection is slow or intermittent.
1
There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.5
on page 29 . 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.
2 Check the signal strength. If the signal strength is low, try moving your computer closer
to the 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).
3 Turn the ZyXEL Device off and on.
4
If the problem continues, contact the network administrator or vendor, or try one of the
advanced 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.