Signal Problems; Mbssid - ZyXEL Communications Nebula LTE3301-PLUS User Manual

The types of encryption you can choose depend on the type of authentication. (See
page 145 for information about this.)
Table 49 Types of Encryption for Each Type of Authentication
Weakest
Strongest
For example, if the WiFi network has a RADIUS server, you can choose WPA, WPA2, or WPA3. If users do
not log in to the WiFi network, you can choose no encryption, WPA2-PSK, or WPA3-SAE.
Note: It is recommended that WiFi networks use WPA3-SAE, WPA2-PSK, 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.

8.9.4 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.

8.9.5 MBSSID

Traditionally, you need to use different APs to configure different Basic Service Sets (BSSs). As well as the
cost of buying extra APs, there is also the possibility of channel interference. The Zyxel Device's MBSSID
(Multiple Basic Service Set IDentifier) function allows you to use one access point to provide several BSSs
simultaneously. You can then assign varying QoS priorities and/or security modes to different SSIDs.
Wireless devices can use different BSSIDs to associate with the same AP.
8.9.5.1 Notes on Multiple BSSs
• A maximum of eight BSSs are allowed on one AP simultaneously.
• You must use different keys for different BSSs. If two wireless devices have different BSSIDs (they are in
different BSSs), but have the same keys, they may hear each other's communications (but not
communicate with each other).
• MBSSID should not replace but rather be used in conjunction with 802.1x security.
Chapter 8 Wireless
NO AUTHENTICATION
No Security
WPA-PSK
WPA2
WPA3-SAE
Nebula Mobile Router User's Guide
RADIUS SERVER
WPA
WPA2
WPA3 (server certificate validation)
146
Section 8.9.3.3 on