Netgear C6900 High Speed Cable Modem Router User Manual
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Specify Internet Port Settings 81 Nighthawk AC1900 WiFi Cable Modem Router An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at destination port 6667. The IRC server not only responds to your originating source port, but also sends an “identify” message to your computer on port 113. Using port triggering, you can tell the modem router, “When you initiate a session with destination port 6667, you must also allow incoming traffic on port 113 to reach the originating...
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82 8 8. Troubleshooting This chapter provides information to help you diagnose and solve problems you might have 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. This chapter contains the following sections: •Troubleshoot with the LEDs •Cannot Log In to the Modem Router •Changes Not Saved •Wireless Connectivity •Troubleshoot Your Network Using the Ping Utility
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Troubleshooting 83 Nighthawk AC1900 WiFi Cable Modem Router Troubleshoot with the LEDs You can use the LEDs on the front panel of the modem router for troubleshooting. Power LED Is Off •Make sure that the power adapter is securely connected to your modem router and securely connected to a working power outlet. •Check that you are using the power adapter that NETGEAR supplied for this product. •If the problem persists, contact technical support for help at www.netgear.com/support. LEDs Never Turn Off...
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Troubleshooting 84 Nighthawk AC1900 WiFi Cable Modem Router Cannot Log In to the Modem Router If you are unable to log in to the modem router from a computer or WiFi device on your local network, check the following: 1. Make sure that you are connected to the modem router’s wired or WiFi network. •For a wired Ethernet connection, make sure that the Ethernet connection is secure and the modem router is powered on (its Power LED is lit). •For a WiFi connection, make sure that you selected the correct...
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Troubleshooting 85 Nighthawk AC1900 WiFi Cable Modem Router Changes Not Saved If the modem router does not save the changes you make in the modem router interface, check the following: •When entering configuration settings, always click the Apply button before moving to another page or tab, or your changes are lost. •Click the Refresh or Reload button in the web browser. The changes might have occurred, but the old settings might be in the web browser’s cache. Wireless Connectivity If you are...
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Troubleshooting 86 Nighthawk AC1900 WiFi Cable Modem Router -The WiFi signal strength is weak in your location: Is your modem router too far from your computer, or too close? Place your computer near the modem router, but at least 6 feet (1.8 meters) away, and see if the signal strength improves. Check for sources of WiFi interference that might block the signal. See Position Your Modem Router on page 9. Troubleshoot Your Network Using the Ping Utility Most network devices and routers contain a ping...
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Troubleshooting 87 Nighthawk AC1900 WiFi Cable Modem Router Verify that the Ethernet card driver software and TCP/IP software are both installed and configured on your computer. Verify that the IP address for your modem router and your computer are correct and that the addresses are on the same subnet. Test the Path from Your Computer to a Remote Device After verifying that the LAN path works correctly, test the path from your computer to a remote device. 1. From the Windows toolbar, click the...
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88 A A. Supplemental Information This appendix covers the following topics: •Factory Settings •Technical Specifications
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Supplemental Information 89 Nighthawk AC1900 WiFi Cable Modem Router Factory Settings You can return the modem router to its factory settings. Use the end of a paper clip or a similar object to press and hold the Reset button on the back of the modem router for at least seven seconds. The modem router resets, and returns to the factory configuration settings shown in the following table. Table 2. Factory default settings FeatureDefault behavior Modem router loginUser login URLwww.routerlogin.com...
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Supplemental Information 90 Nighthawk AC1900 WiFi Cable Modem Router Wireless (continued)Country/regionUnited States RF channel (2.4 GHz)Auto1 RF channel (5 GHz)CH 153 (or manually select Band I and 4 Channels) Operating modeUp to 600 Mbps at 2.4 GHz, 1300 Mbps at 5 GHz 1. Maximum wireless signal rate derived from IEEE Standard 802.11 specifications. Actual throughput can vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and...