ZyXEL Communications VSG1435-B101 - V1.10, Руководство пользователя

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Chapter 34 Troubleshooting
VSG1435-B101 Series User’s Guide
316
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
Your session with the ZyXEL Device may have expired. Try logging into the ZyXEL
Device again.
2
Check the hardware connections, and make sure the LEDs are behaving as
expected. See
Section 1.6 on page 29 and Section 1.7 on page 30 .
3
Turn the ZyXEL Device off and on.
4
If the problem continues, contact your ISP.
34.4 Wireless Internet Access
What factors may cause intermittent or unstabled wireless connection? How can I
solve this problem?
The following factors may cause interference:
• Obstacles: walls, ceilings, furniture, and so on.
• Building Materials: metal doors, aluminum studs.
• Electrical devices: microwaves, monitors, electric motors, cordless phones, and
other wireless devices.
To optimize the speed and quality of your wireless connection, you can:
• Move your wireless device closer to the AP if the signal strength is low.
• Reduce wireless interference that may be caused by other wireless networks or
surrounding wireless electronics such as cordless phones.
• Place the AP where there are minimum obstacles (such as walls and ceilings)
between the AP and the wireless client.
• Reduce the number of wireless clients connecting to the same AP
simultaneously, or add additional APs if necessary.
• Try closing some programs that use the Internet, especially peer-to-peer
applications. If the wireless client is sending or receiving a lot of information, it
may have too many programs open that use the Internet.