ZyXEL Communications P-870HW-51a v2 Benutzerhandbuch

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Chapter 7 Wireless LAN
P-870HW-51a v2 User’s Guide
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mother owns a 1970 Dodge Challenger and her favorite movie is Vanishing Point 
(which you know was made in 1971) you could use “70dodchal71vanpoi” as your 
security key.
Signal Problems
Because wireless networks are radio networks, their signals are subject to 
limitations of distance, interference and absorption.
Problems with distance occur when the two radios are too far apart. Problems with 
interference occur when other radio waves interrupt the data signal. Interference 
may come from other radio transmissions, such as military or air traffic control 
communications, or from machines that are coincidental emitters such as electric 
motors or microwaves. Problems with absorption occur when physical objects 
(such as thick walls) are between the two radios, muffling the signal.
7.3  Before You Begin
Before you start using these screens, ask yourself the following questions. See 
 if some of the terms used here do not make sense to you.
• What wireless standards do the other wireless devices support (IEEE 802.11g, 
for example)? What is the most appropriate standard to use?
• What security options do the other wireless devices support (WPA-PSK, for 
example)? What is the best one to use?
• Do the other wireless devices support WPS (Wi-Fi Protected Setup)? If so, you 
can set up a well-secured network very easily. 
Even if some of your devices support WPS and some do not, you can use WPS to 
set up your network and then add the non-WPS devices manually, although this 
is somewhat more complicated to do.
• What advanced options do you want to configure, if any? If you want to 
configure advanced options, ensure that you know precisely what you want to 
do. If you do not want to configure advanced options, leave them alone.
7.4  The General Screen 
Note: If you are configuring the ZyXEL Device from a computer connected to the 
wireless LAN and you change the ZyXEL Device’s SSID or security settings, 
you will lose your wireless connection when you press Apply to confirm. You 
must then change the wireless settings of your computer to match the ZyXEL 
Device’s new settings.