Netgear C7000 Nighthawk Ac1900 Wifi Cable Modem Router User Manual

Specify Network Settings 61
 Nighthawk AC1900
 WiFi Cable Modem  Router
Specify the IP Addresses that the Modem Router Assigns
By default, the modem router acts as a Dynamic Host Configuration Protoc\
ol (DHCP) server. 
The modem router assigns IP, DNS server, and default gateway addresses to all computers  connected to the LAN. The assigned default gateway address is the LAN address of the 
modem router. 
These addresses must be part of the same IP address subnet as the modem \
router’s LAN IP  address....

Specify Network Settings 
62 Nighthawk AC1900 WiFi Cable Modem Router 
b. In the Ending IP Address field, type the number at the end of the range of IP 
addresses.
This IP address must be in the same subnet as the modem router.
7. Click the Apply button.
Your settings are saved.
The modem router delivers the following parameters to any LAN device that requests DHCP:
•An IP address from the range that you have defined
•Subnet mask
•Gateway IP address (the modem router’s LAN IP address)
•DNS server IP...

Specify Network Settings 
63  Nighthawk AC1900 WiFi Cable Modem Router
Reserve LAN IP Addresses
When you specify a reserved IP address for a computer on the LAN, that computer always 
receives the same IP address each time it accesses the modem router’s DHCP server. 
Assign reserved IP addresses to computers or servers that require permanent IP settings. 
To reserve an IP address: 
1. Launch an Internet browser from a computer or wireless device that is connected to the 
network.
2. Type...

Specify Network Settings 
64 Nighthawk AC1900 WiFi Cable Modem Router 
2. Click the Delete button.
The address is removed.
Improve Network Connections with Universal Plug and 
Play
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, 
access the network and connect to other devices as needed. UPnP devices can 
automatically discover the services from other registered UPnP devices on the network.
If you use applications such as multiplayer gaming, peer-to-peer...

Specify Network Settings 
65  Nighthawk AC1900 WiFi Cable Modem Router
from 1 to 255. The default value for the advertisement time to live is 4 hops, which should 
be fine for most home networks. If you notice that some devices are not being updated or 
reached correctly, it might be necessary to increase this value.
8. Click the Apply button.
The UPnP Portmap Table displays the IP address of each UPnP device that is accessing 
the modem router and which ports (internal and external) that device has...

Specify Network Settings 
66 Nighthawk AC1900 WiFi Cable Modem Router 
Specify Basic WiFi Settings
The modem router comes with preset security. This means that the WiFi network name 
(SSID), network key (password), and security option (encryption protocol) are preset in the 
factory. You can find the preset SSID and password on the product label. 
Note:The preset SSID and password are uniquely generated for every 
device to protect and maximize your wireless security.
NETGEAR recommends that you do not...

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 Nighthawk AC1900
 WiFi Cable Modem  Router
4. Select  Wireless.
5. In the Region list, select your region. In some locations, you cannot change this set\
ting.
6.  T
o control the SSID broadcast, select or clear the  Enable SSID Broadcast check box.
When this check box is selected, the modem router broadcasts its network\
 name (SSID) 
so that it displays when you scan for local WiFi networks on your comput\
er or wireless 
device.
7.  T
o change the network name (SSID), type...

Specify Network Settings 
68 Nighthawk AC1900 WiFi Cable Modem Router 
10. Click the Apply button.
Your settings are saved.
If you connected wirelessly to the network and you changed the SSID, you are 
disconnected from the network.
11. Make sure that you can connect wirelessly to the network with its new settings. 
If you cannot connect wirelessly, check the following:
•Is your computer or wireless device connected to another wireless network in your 
area? Some wireless devices automatically connect to...

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 Nighthawk AC1900
 WiFi Cable Modem  Router
7. Write down the new password and keep it in a secure place for future refe\
rence.
8.  Click the  Apply button.
Your changes are saved.
Set Up a Guest Network
A guest network allows visitors at your home to use the Internet without\
 using your wireless  security key. You can add a guest network to each wireless network: 2.4 GHz b/g/n and  
5.0 GHz a/n. 
To set up a guest network:
1.  Launch an Internet browser from a computer or...

Specify Network Settings 
70 Nighthawk AC1900 WiFi Cable Modem Router 
•Enable SSID Broadcast. If this check box is selected, the wireless access point 
broadcasts its name (SSID) to all wireless stations. Stations with no SSID can adopt 
the correct SSID for connections to this access point.
•Allow guest to see each other and access my local network. If this check box is 
selected, anyone who connects to this SSID has access to your local network, not just 
Internet access.
6. Give the guest network a...