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Page 106 / 114 Scroll up to view Page 101 - 105
Version 1.1, 08/2013. Copyright
2013 Hitron Technologies
106
Hitron CGN3 User’s Guide
8
Troubleshooting
Use this section to solve common problems with the CGN3 and your network. It
contains the following sections:
None of the LEDs Turn On
on page
106
One of the LEDs does not Display as Expected
on page
107
I Forgot the CGN3’s IP Address
on page
107
I Forgot the CGN3’s Admin Username or Password
on page
107
I Cannot Access the CGN3 or the Internet
on page
108
I Cannot Access the Internet and the DS and US LEDs Keep Blinking
on page
108
I Cannot Connect My Wireless Device
on page
108
Problem:
None of the LEDs Turn On
The CGN3 is not receiving power, or there is a fault with the device.
1
Ensure that you are using the correct power adaptor.
Using a power adaptor other than the one that came with your CGN3 can
damage the CGN3.
2
Ensure that the power adaptor is connected to the CGN3 and the wall socket (or
other power source) correctly.
3
Ensure that the power source is functioning correctly. Replace any broken fuses
or reset any tripped circuit breakers.
Page 107 / 114
Version 1.1, 08/2013. Copyright
2013 Hitron Technologies
107
Hitron CGN3 User’s Guide
4
Disconnect and re-connect the power adaptor to the power source and the
CGN3.
5
If none of the above steps solve the problem, consult your vendor.
Problem:
One of the LEDs does not Display as Expected
1
Ensure that you understand the LED’s normal behavior (see
LEDs
on page
18
).
2
Ensure that the CGN3’s hardware is connected correctly; see the Quick
Installation Guide.
3
Disconnect and re-connect the power adaptor to the CGN3.
4
If none of the above steps solve the problem, consult your vendor.
Problem:
I Forgot the CGN3’s IP Address
1
The CGN3’s default LAN IP address is
192.168.0.1
.
2
You can locate the CGN3’s GUI by entering the LAN domain suffix into your
browser’s address bar (on a computer connected to the LAN). The default LAN
domain suffix is displayed in the
Basic
>
LAN Setup
screen’s
Domain Suffix
field. See
The LAN Setup Screen
on page
51
for more information.
3
Depending on your operating system and your network, you may be able to find
the CGN3’s IP address by looking up your computer’s default gateway. To do
this on (most) Windows machines, click
Start
>
Run
, enter “cmd”, and then
enter “ipconfig”. Get the IP address of the
Default Gateway
, and enter it in your
browser’s address bar.
4
If you still cannot access the CGN3, you need to reset the CGN3. See
Resetting
the CGN3
on page
25
. All user-configured data is lost, and the CGN3 is returned
to its default settings. If you previously backed-up a more recent version your
CGN3’s settings, you can now upload them to the CGN3; see
Backup Screen
on
page
84
.
Problem:
I Forgot the CGN3’s Admin Username or Password
1
The default username is
admin
, and the default password is
password
.
Page 108 / 114
Version 1.1, 08/2013. Copyright
2013 Hitron Technologies
108
Hitron CGN3 User’s Guide
2
If the default username and password do not work, you need to reset the CGN3.
See
Resetting the CGN3
on page
25
. All user-configured data is lost, and the
CGN3 is returned to its default settings. If you previously backed-up a more
recent version your CGN3’s settings, you can now upload them to the CGN3;
see
Backup Screen
on page
84
.
Problem:
I Cannot Access the CGN3 or the Internet
1
Ensure that you are using the correct IP address for the CGN3.
2
Check your network’s hardware connections, and that the CGN3’s LEDs display
correctly (see
LEDs
on page
18
).
3
Make sure that your computer is on the same subnet as the CGN3; see
IP
Address Setup
on page
22
.
4
If you are attempting to connect over the wireless network, there may be a
problem with the wireless connection. Connect via a
LAN
port instead.
5
If the above steps do not work, you need to reset the CGN3. See
Resetting the
CGN3
on page
25
. All user-configured data is lost, and the CGN3 is returned to
its default settings. If you previously backed-up a more recent version your
CGN3’s settings, you can now upload them to the CGN3; see
Backup Screen
on
page
84
.
6
If the problem persists, contact your vendor.
Problem:
I Cannot Access the Internet and the DS and US LEDs
Keep Blinking
Your service provider may have disabled your Internet access; check the
Status
>
DOCSIS WAN
screen’s
Network Access
field (see
The DOCSIS WAN Screen
on
page
42
).
Problem:
I Cannot Connect My Wireless Device
1
Ensure that your wireless client device is functioning properly, and is configured
correctly. See the wireless client’s documentation if unsure.
2
Ensure that the wireless client is within the CGN3’s radio coverage area. Bear in
mind that physical obstructions (walls, floors, trees, etc.) and electrical
Page 109 / 114
Version 1.1, 08/2013. Copyright
2013 Hitron Technologies
109
Hitron CGN3 User’s Guide
interference (other radio transmitters, microwave ovens, etc) reduce your
CGN3’s signal quality and coverage area.
3
Ensure that the CGN3 and the wireless client are set to use the same wireless
mode and SSID (see
Basic Settings Screen
on page
70
) and security settings
(see
WPS & Security Screen
on page
75
).
4
Re-enter any security credentials (WEP keys, WPA(2)-PSK password, or WPS
PIN).
5
If you are using WPS’s PBC (push-button configuration) feature, ensure that you
are pressing the button on the CGN3 and the button on the wireless client within
2 minutes of one another.
Page 110 / 114
Version 1.1, 08/2013. Copyright
2013 Hitron Technologies
110
Hitron CGN3 User’s Guide
Index
Numbers
802.11b/g/n
15
,
67
A
access control
78
access logs
15
access point
14
,
27
,
66
,
81
accounts, login
24
address, IP
22
address, IP, local
22
admin management
82
AP
14
,
27
,
66
,
81
attached network devices
42
B
backup
84
,
86
backup and restore
15
bar, navigation
25
buttons
15
C
cable connection
14
,
27
,
66
,
81
cable connection status
41
cable modem
14
,
27
,
66
,
81
CATV
15
,
33
,
34
clients, wireless
66
configuration file
38
connection status, cable
41
conventions, document
3
customer support
4
D
DDNS
51
debugging
49
,
81
,
83
default
84
,
86
default IP address
22
default username and password
24
defaults
84
,
86
De-Militarized Zone
50
DHCP
15
,
22
,
36
DHCP lease
37
diagnostics
49
,
81
,
83
DMZ
50
DMZ De-Militarized Zone
15
DNS
49
,
50
document conventions
3
Domain Name System
49
domain suffix
49
downstream transmission
38
DS
20
E
ETH
20

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