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Troubleshooting

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10. Troubleshooting 10 This chapter provides information to help you diagnose and solve problems you might experience with your modem router. If you do not find the solution here, check the NETGEAR support site at http://support.netgear.com for product and contact information. The chapter contains the following sections: • Troubleshoot With the LEDs • Troubleshoot the Cable Internet Connection • Cannot Log In to the Modem Router • Changes Not Saved • Wireless Connectivity • Troubleshoot Your Network Using the Ping Utility 107

Section	Page
Nighthawk AC1900 WiFi Cable Modem Router	1
Contents	3
1. Hardware Setup	7
Unpack Your Modem Router	8
Front Panel	9
LED Descriptions	9
Rear Panel	11
Position Your Modem Router	11
Install and Activate Your Modem Router	12
Connect Your Modem Router to a Computer	12
Activate Your Internet Service	13
Activate Your Internet Service With Comcast XFINITY	15
Perform a Speed Test	16
Connect Your Modem Router to a Router After Installation and Activation	16
2. Connect to the Network and Access the Modem Router	18
Connect to the Network	19
Wired Connection	19
WiFi Connection	19
Label	20
Types of Logins	20
Log In to the Modem Router	20
Access the Modem Router With NETGEAR genie App	22
3. Specify Your Internet Settings	23
Specify the Cable Connection Starting Frequency	24
View Modem Router Initialization	25
Manually Set Up the Internet Connection	26
Specify an IPv6 Internet Connection	27
Change the MTU Size	28
4. Control Access to the Internet	31
Set Up Parental Controls	32
Block Access to Your Network	33
Use Keywords to Block Internet Sites	33
Block Services From the Internet	35
Schedule When to Block Internet Sites and Services	36
Avoid Blocking on a Trusted Computer	37
Set Up Security Event Email Notifications	38
5. Share USB Devices Attached to the Modem Router	40
USB Storage Device Requirements	41
Connect a USB Storage Device to the Modem Router	41
Access a USB Drive Connected to the Modem Router From a Windows Computer	42
Map a USB Device to a Windows Network Drive	42
Access a USB Storage Device That Is Connected to the Modem Router From a Mac	43
Control Access to the USB Storage Device	43
Use FTP Within the Network	45
View or Change Network Folders on a USB Storage Device	46
Add a Network Folder on a USB storage device	47
Edit a Network Folder on a USB storage device	48
Approve USB Devices	48
Access the USB storage device Through the Internet	50
Set Up FTP Access Through the Internet	50
Access the USB storage device Through the Internet with FTP	51
Safely Remove a USB storage device	52
6. Share a USB Printer	53
Install the Printer Driver and Cable the Printer	54
Download the ReadySHARE Printer Utility	54
Install the ReadySHARE Printer Utility	55
Use the Shared Printer	56
View or Change the Status of a Printer	57
Use the Scan Feature of a Multifunction USB Printer	58
Change NETGEAR USB Control Center Settings	59
7. Specify Network Settings	60
View WAN Settings	61
Set Up a Default DMZ Server	62
Change the Modem Router’s Device Name	63
Change the LAN TCP/IP Settings	63
Specify the IP Addresses That the Modem Router Assigns	64
Disable the DHCP Server Feature in the Modem Router	66
Reserve LAN IP Addresses	66
Improve Network Connections With Universal Plug and Play	68
Use the WPS Wizard for WiFi Connections	69
Specify Basic WiFi Settings	69
Change the WiFi Security Option	72
Set Up a Guest Network	72
Control the Wireless Radios	74
Use the WiFi On/Off Button	74
Enable or Disable the Wireless Radios	74
Set Up a Wireless Schedule	75
Specify WPS Settings	76
8. Manage Your Network	78
Change the admin Password	79
Set Up Password Recovery	79
Recover the admin Password	80
View Modem Router Status	80
Display Internet Port Statistics	81
Check the Internet Connection Status	82
View Logs of Modem Router Activity	83
View Event Logs	85
Run the Ping Utility	86
Run the Traceroute Utility	87
Monitor Internet Traffic	88
View Devices Currently on the Network	89
Manage the Modem Router Configuration File	90
Back Up Settings	90
Restore Configuration Settings	91
Erase the Current Configuration Settings	92
View Wireless Access Points in Your Area	92
View or Change the Modem Router Wireless Channel	93
Dynamic DNS	94
Specify a DNS Account	95
Change the Dynamic DNS Settings	95
Remote Management	96
9. Specify Internet Port Settings	98
Set Up Port Forwarding to a Local Server	99
Add a Custom Port Forwarding Service	100
Edit a Port Forwarding Service	101
Delete a Port Forwarding Entry	102
Application Example: Make a Local Web Server Public	102
How the Modem Router Implements the Port Forwarding Rule	103
Set Up Port Triggering	103
Add a Port Triggering Service	104
Application Example: Port Triggering for Internet Relay Chat	105
10. Troubleshooting	107
Troubleshoot With the LEDs	108
Power LED Is Off	108
LEDs Never Turn Off	108
Internet LED Is Off	108
Troubleshoot the Cable Internet Connection	108
Cannot Log In to the Modem Router	109
Changes Not Saved	110
Wireless Connectivity	110
Troubleshoot Your Network Using the Ping Utility	111
Test the LAN Path to Your Modem Router	111
Test the Path From Your Computer to a Remote Device	112
A. Supplemental Information	113
Factory Settings	114