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Chapter 25 Troubleshooting I enabled NCC Discovery, but the Zyxel Device is still in standalone mode. Make sure your Zyxel Device is registered to the NCC. The Zyxel Device is already registered with NCC, but it is still in standalone mode; it cannot connect to the NCC. 1 Make sure that NCC Discovery is enabled (see Section 9.4 on page 74). 2 Check your network's firewall/security settings. Make sure the following TCP ports are allowed: 443, 4335, and 6667. 3 Make sure your Zyxel Device can access the Internet. 4 Check your network's VLAN settings (see Section 9.3 on page 71). You may have to change the Management VLAN settings of the Zyxel Device to allow it to connect to the Internet and access the NCC. Note: Changing the management VLAN and IP address settings on the Zyxel Device also pushes these changes to the NCC. Do this only if your device cannot otherwise connect to the NCC. 5 Make sure your Zyxel Device does not have to go through network authentication such as a captive portal, If your network uses a captive portal, the network administrator may have to create a new VLAN without this requirement. Change your Zyxel Device's management VLAN settings as necessary. Some features I set using the NCC do not work as expected. 1 Make sure your Zyxel Device can access the Internet. 2 Check your network's firewall/security settings. Make sure the following ports are allowed: • TCP: 443, 4335, and 6667 • UDP: 123 3 After changing your Zyxel Device settings using the NCC, wait 1-2 minutes for the changes to take effect. I can only see newer logs. Older logs are missing. When a log reaches the maximum number of log messages (see Section 1.4 on page 18), new log messages automatically overwrite the oldest log messages. NWA50AX/NWA90AX/NWA55AXE Series User's Guide 211

Section	Page
NWA50AX/NWA90AX/NWA55AXE	1
Document Conventions	3
Contents Overview	4
Table of Contents	5
Introduction	12
1.1 Overview	12
1.2 Zyxel Device Roles	12
1.2.1 Root AP	14
1.2.2 Wireless Repeater	14
1.2.3 Radio Frequency (RF) Monitor	15
1.3 Sample Feature Applications	16
1.3.1 MBSSID	16
1.3.2 Dual-Radio	17
1.4 Zyxel Device Product Feature	18
AP Management	20
2.1 Management Mode	20
2.1.1 Standalone	20
2.1.2 Nebula Control Center	20
2.2 Switching Management Modes	22
2.3 Zyxel One Network (ZON) Utility	22
2.3.1 Requirements	22
2.3.2 Run the ZON Utility	23
2.4 Ways to Access the Zyxel Device	26
2.5 Good Habits for Managing the Zyxel Device	27
Hardware	28
3.1 Zyxel Device Single LED	28
3.1.1 Zyxel Device LED	28
Web Configurator	31
4.1 Overview	31
4.2 Accessing the Web Configurator	31
4.3 Navigating the Web Configurator	34
4.3.1 Title Bar	35
4.3.2 Navigation Panel	36
4.3.3 Standalone Mode Navigation Panel Menus	36
4.3.4 Cloud Mode Navigation Panel Menus	38
4.3.5 Tables and Lists	39
Standalone Configuration	42
Standalone Configuration	43
5.1 Overview	43
5.2 Starting and Stopping the Zyxel Device	43
Dashboard	45
6.1 Overview	45
6.1.1 CPU Usage	48
6.1.2 Memory Usage	49
Setup Wizard	51
7.1 Accessing the Wizard	51
7.2 Using the Wizard	51
7.2.1 Step 1 Time Settings	51
7.2.2 Step 2 Password and Uplink Connection	52
7.2.3 Step 3 Radio	53
7.2.4 Step 4 SSID	54
7.2.5 Summary	55
Monitor	56
8.1 Overview	56
8.1.1 What You Can Do in this Chapter	56
8.2 What You Need to Know	56
8.3 Network Status	57
8.3.1 Port Statistics Graph	58
8.4 Radio List	59
8.4.1 AP Mode Radio Information	61
8.5 Station List	62
8.6 WDS Link Info	63
8.7 Detected Device	64
8.8 View Log	66
Network	69
9.1 Overview	69
9.1.1 What You Can Do in this Chapter	69
9.2 IP Setting	69
9.3 VLAN	71
9.4 NCC Discovery	74
Wireless	76
10.1 Overview	76
10.1.1 What You Can Do in this Chapter	76
10.1.2 What You Need to Know	77
10.2 AP Management	77
10.3 Rogue AP	82
10.3.1 Add/Edit Rogue/Friendly List	85
10.4 DCS	86
10.5 Technical Reference	86
User	88
11.1 Overview	88
11.1.1 What You Can Do in this Chapter	88
11.1.2 What You Need To Know	88
11.2 User Summary	89
11.2.1 Add/Edit User	89
11.3 Setting	91
11.3.1 Edit User Authentication Timeout Settings	93
AP Profile	95
12.1 Overview	95
12.1.1 What You Can Do in this Chapter	95
12.1.2 What You Need To Know	95
12.2 Radio	96
12.2.1 Add/Edit Radio Profile	97
12.3 SSID	102
12.3.1 SSID List	103
12.3.2 Add/Edit SSID Profile	104
12.4 Security List	107
12.4.1 Add/Edit Security Profile	107
12.5 MAC Filter List	124
12.5.1 Add/Edit MAC Filter Profile	124
12.6 Layer-2 Isolation List	125
12.6.1 Add/Edit Layer-2 Isolation Profile	127
WDS Profile	128
13.1 Overview	128
13.1.1 What You Can Do in this Chapter	128
13.2 WDS Profile	128
13.2.1 Add/Edit WDS Profile	129
Certificates	130
14.1 Overview	130
14.1.1 What You Can Do in this Chapter	130
14.1.2 What You Need to Know	130
14.1.3 Verifying a Certificate	132
14.2 My Certificates	133
14.2.1 Add My Certificates	134
14.2.2 Edit My Certificates	136
14.2.3 Import Certificates	139
14.3 Trusted Certificates	140
14.3.1 Edit Trusted Certificates	141
14.3.2 Import Trusted Certificates	144
14.4 Technical Reference	145
System	146
15.1 Overview	146
15.1.1 What You Can Do in this Chapter	146
15.2 Host Name	146
15.3 Date and Time	147
15.3.1 Pre-defined NTP Time Servers List	149
15.3.2 Time Server Synchronization	150
15.4 WWW Overview	151
15.4.1 Service Access Limitations	151
15.4.2 System Timeout	151
15.4.3 HTTPS	151
15.4.4 Configuring WWW Service Control	152
15.4.5 HTTPS Example	153
15.5 SSH	159
15.5.1 How SSH Works	160
15.5.2 SSH Implementation on the Zyxel Device	161
15.5.3 Requirements for Using SSH	161
15.5.4 Configuring SSH	161
15.5.5 Examples of Secure Telnet Using SSH	162
15.6 FTP	163
Log and Report	165
16.1 Overview	165
16.1.1 What You Can Do In this Chapter	165
16.2 Email Daily Report	165
16.3 Log Setting	167
16.3.1 Log Setting Screen	168
16.3.2 Edit System Log Settings	169
16.3.3 Edit Remote Server	173
16.3.4 Active Log Summary	174
File Manager	177
17.1 Overview	177
17.1.1 What You Can Do in this Chapter	177
17.1.2 What you Need to Know	177
17.2 Configuration File	178
17.2.1 Example of Configuration File Download Using FTP	182
17.3 Firmware Package	183
17.3.1 Example of Firmware Upload Using FTP	184
17.4 Shell Script	185
Diagnostics	188
18.1 Overview	188
18.1.1 What You Can Do in this Chapter	188
18.2 Diagnostics	188
18.3 Remote Capture	189
LEDs	190
19.1 Overview	190
19.1.1 What You Can Do in this Chapter	190
19.2 Suppression Screen	190
19.3 Locator Screen	191
Reboot	193
20.1 Overview	193
20.1.1 What You Need To Know	193
20.2 Reboot	193
Shutdown	194
21.1 Overview	194
21.1.1 What You Need To Know	194
21.2 Shutdown	194
Local Configuration in Cloud Mode	195
Cloud Mode	196
22.1 Overview	196
22.2 Cloud Mode Web Configurator Screens	196
22.3 Dashboard	197
Network	199
23.1 Overview	199
23.1.1 What You Can Do in this Chapter	199
23.2 IP Setting	199
23.3 VLAN	201
Maintenance	202
24.1 Overview	202
24.1.1 What You Can Do in this Chapter	202
24.2 Shell Script	202
24.3 Diagnostics	203
24.4 View Log	204
Appendices and Troubleshooting	207
Troubleshooting	208
25.1 Overview	208
25.2 Power, Hardware Connections, and LED	208
25.3 Zyxel Device Management, Access, and Login	209
25.4 Internet Access	212
25.5 WiFi Network	213
25.6 Resetting the Zyxel Device	215
25.7 Getting More Troubleshooting Help	215
Importing Certificates	216
IPv6	240
Customer Support	248
Legal Information	253

Match case Limit results 1 per page

Chapter 25 Troubleshooting

NWA50AX/NWA90AX/NWA55AXE Series User’s Guide

211

I enabled

NCC Discovery

, but the Zyxel Device is still in standalone mode.

Make sure your Zyxel Device is registered to the NCC.

The Zyxel Device is already registered with NCC, but it is still in standalone mode; it cannot

connect to the NCC.

Make sure that NCC Discovery is enabled (see

Section 9.4 on page 74

Check your network’s firewall/security settings. Make sure the following TCP ports are allowed: 443, 4335,

and 6667.

Make sure your Zyxel Device can access the Internet.

Check your network’s VLAN settings (see

Section 9.3 on page 71

). You may have to change the

Management VLAN settings of the Zyxel Device to allow it to connect to the Internet and access the

NCC.

Note: Changing the management VLAN and IP address settings on the Zyxel Device also

pushes these changes to the NCC. Do this only if your device cannot otherwise

connect to the NCC.

Make sure your Zyxel Device does not have to go through network authentication such as a captive

portal, If your network uses a captive portal, the network administrator may have to create a new VLAN

without this requirement. Change your Zyxel Device’s management VLAN settings as necessary.

Some features I set using the NCC do not work as expected.

Make sure your Zyxel Device can access the Internet.

Check your network’s firewall/security settings. Make sure the following ports are allowed:

•

TCP: 443, 4335, and 6667

•

UDP: 123

After changing your Zyxel Device settings using the NCC, wait 1-2 minutes for the changes to take

effect.

I can only see newer logs. Older logs are missing.

When a log reaches the maximum number of log messages (see

Section 1.4 on page 18

), new log

messages automatically overwrite the oldest log messages.