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Many broadband ISPs restrict access by allowing traffic only from the MAC address

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AC1900 Cable Modem Voice Router • Check to see that the network address of your computer (the portion of the IP address specified by the subnet mask) is different from the network address of the remote device. • Check to see that your cable or DSL modem is connected and functioning. • If your ISP assigned a host name to your computer, enter that host name as the account name on the Internet Setup page. • Your ISP might be rejecting the Ethernet MAC addresses of all but one of your computers. Many broadband ISPs restrict access by allowing traffic only from the MAC address of your broadband modem. If your ISP restricts access to the MAC address of a single computer connected to that modem, configure your modem router to "clone" or "spoof" the MAC address from the authorized computer. Troubleshooting 121

Section	Page
AC1900 Cable Modem Voice Router	1
1. Hardware Overview	7
Package Contents	8
Front Panel	8
Top Panel WPS Button	10
Rear Panel	10
Product Label	11
Install an Optional Battery	12
Replace the Battery	12
Position Your Modem Router	13
Install and Activate Your Modem Router	14
Connect Your Modem Router to a Computer	14
Call Comcast XFINITY to Activate Internet Service and Register the Voice Telephone Lines	15
Perform a Speed Test	16
2. Connect to the Network and Access the Modem Router	17
Connect to the Network	18
Wired Connection	18
WiFi Connection	18
Types of Logins	19
Log In to the Modem Router	20
Access the Modem Router With the NETGEAR genie App	21
3. Specify Your Internet Settings	22
Specify the Cable Connection Starting Frequency	23
View Modem Router Initialization	24
Manually Set Up the Internet Connection	25
Specify an IPv6 Internet Connection	26
Change the MTU Size	27
4. Control Access to the Internet	30
Set Up Parental Controls	31
Block Access to Your Network	32
Use Keywords to Block Internet Sites	33
Delete a Keyword	34
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
Manage Services	39
Enable or Disable NAT	41
5. Share USB Devices Attached to the Modem Router	42
USB Storage Device Requirements	43
Connect a USB Storage Device to the Modem Router	43
Access a USB Drive Connected to the Modem Router From a Windows Computer	44
Map a USB Device to a Windows Network Drive	44
Access a USB Storage Device That Is Connected to the Modem Router From a Mac	45
Control Access to the USB Storage Device	45
Use FTP Within the Network	47
View Network Folders on a USB Storage Device	48
Add a Network Folder on a USB Storage Device	49
Edit a Network Folder on a USB Storage Device	50
Approve USB Devices	50
Access the USB Storage Device Through the Internet	52
Set Up FTP Access Through the Internet	52
Access the USB Storage Device Through the Internet With FTP	54
Safely Remove a USB Storage Device	54
6. Share a USB Printer	56
Install the Printer Driver and Cable the Printer	57
Download the ReadySHARE Printer Utility	57
Install the ReadySHARE Printer Utility	58
Use the Shared Printer	59
View or Change the Status of a Printer	60
Use the Scan Feature of a Multifunction USB Printer	61
Change NETGEAR USB Control Center Settings	62
7. Voice Telephone Lines	64
Connect a Telephone Line	65
View the Voice Status	65
View the MTA Call List	66
View the EMTA Event Log	67
8. Specify Network Settings	68
View or Change WAN Settings	69
Set Up a Default DMZ Server	70
Manually Configure LAN Switch Ports	71
Change the Modem Router’s Device Name	72
Change the LAN TCP/IP Settings	72
Specify the IP Addresses That the Modem Router Assigns	73
Disable the DHCP Server Feature in the Modem Router	75
Manage LAN IP Addresses	75
Reserve an IP Address	75
Edit a Reserved IP Address Entry	76
Delete a Reserved IP Address Entry	77
Improve Network Connections With Universal Plug-N-Play	77
Use the WPS Wizard for WiFi Connections	78
Specify Basic WiFi Settings	79
Change the WiFi Security Option	81
Set Up a Guest Network	82
Control the WiFi Radios	83
Use the WiFi On/Off Button	83
Enable or Disable the WiFi Radios	84
Set Up a WiFi Schedule	85
Specify WPS Settings	86
9. Manage Your Network	87
Change the admin Password	88
View Modem Router Status	89
Display Internet Port Statistics	89
Check the Internet Connection Status	91
View the Battery Status	92
View and Manage Logs of Modem Router Activity	92
View Event Logs	94
Run the Ping Utility	95
Run the Traceroute Utility	96
Monitor Internet Traffic	97
View Devices Currently on the Network	98
Manage the Modem Router Configuration File	99
Back Up Settings	99
Restore Configuration Settings	100
Erase the Current Configuration Settings	101
View Wireless Access Points in Your Area	101
View or Change the Modem Router Wireless Channel	102
Dynamic DNS	103
Specify a DNS Account	104
Change the Dynamic DNS Settings	104
Remote Management	105
10. Specify Internet Port Settings	107
Set Up Port Forwarding to a Local Server	108
Add a Custom Port Forwarding Service	109
Edit a Port Forwarding Service	110
Delete a Port Forwarding Entry	111
Application Example: Make a Local Web Server Public	111
How the Modem Router Implements the Port Forwarding Rule	112
Set Up Port Triggering	112
Add a Port Triggering Service	113
Application Example: Port Triggering for Internet Relay Chat	114
11. Troubleshooting	115
Troubleshoot with the LEDs	116
Power LED Is Off	116
LEDs Never Turn Off	116
Internet LED Is Off	116
Troubleshoot the Cable Internet Connection	116
Cannot Log In to the Modem Router	117
Changes Not Saved	118
WiFi Connectivity	118
Phone Does Not Get a Dial Tone	119
Troubleshoot Your Network Using the Ping Utility	119
Test the LAN Path to Your Modem Router	119
Test the Path From Your Computer to a Remote Device	120
A. Supplemental Information	122
Factory Settings	123

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Troubleshooting

121

AC1900 Cable Modem Voice Router

•

Check to see that the network address of your computer (the portion of the IP address

specified by the subnet mask) is different from the network address of the remote device.

•

Check to see that your cable or DSL modem is connected and functioning.

•

If your ISP assigned a host name to your computer, enter that host name as the account

name on the Internet Setup page.

•

Your ISP might be rejecting the Ethernet MAC addresses of all but one of your

computers.

Many broadband ISPs restrict access by allowing traffic only from the MAC address of

your broadband modem. If your ISP restricts access to the MAC address of a single

computer connected to that modem, configure your modem router to “clone” or “spoof”

the MAC address from the authorized computer.