Signal Problems; Bss - ZyXEL Communications LTE Series User Manual

The types of encryption you can choose depend on the type of authentication. (See
page 121 for information about this.)
Table 40 Types of Encryption for Each Type of Authentication
Weakest
Strongest
For example, if the WiFi network has a RADIUS server, you can choose WPA or WPA2. If users do not log in
to the WiFi network, you can choose no encryption, WPA-PSK, or WPA2-PSK.
Note: It is recommended that WiFi networks use WPA-PSK, WPA, or stronger encryption. The
other types of encryption are better than none at all, but it is still possible for
unauthorized WiFi devices to figure out the original information pretty quickly.
Many types of encryption use a key to protect the information in the WiFi network. The longer the key,
the stronger the encryption. Every device in the WiFi network must have the same key.

7.11.4 Signal Problems

Because WiFi 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.

7.11.5 BSS

A Basic Service Set (BSS) exists when all communications between wireless stations go through one
access point (AP).
Intra-BSS traffic is traffic between wireless stations in the BSS. When Intra-BSS traffic blocking is disabled,
wireless station A and B can access the wired network and communicate with each other. When Intra-
BSS traffic blocking is enabled, wireless station A and B can still access the wired network but cannot
communicate with each other.
Chapter 7 Wireless
NO AUTHENTICATION
No Security
WPA-PSK
WPA2-PSK
LTE Series User's Guide
RADIUS SERVER
WPA
WPA2
122
Section 7.11.3.3 on