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Check to see that IP address of your router is listed as the default gateway for your computer. If DHCP
assigns the IP configuration of your computers, this information is not visible in your computer Network
Control Panel. Verify that the IP address of the router is listed as the default gateway.
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.
Some ISPs additionally restrict access to the MAC address of a single computer connected to that modem. If
your ISP does this, configure your router to “clone” or “spoof” the MAC address from the authorized computer.
Troubleshooting
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14
Supplemental Information
This appendix includes technical information about your router.
This appendix covers the following topics:
Factory Settings
on page 158
Technical Specifications
on page 159
157
Page 158 / 160
Factory Settings
You can return the 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 router for at least seven seconds. The router resets and returns to the factory
configuration settings shown in the following table.
Table 3. Factory default settings
Default Behavior
Feature
www.routerlogin.com or www.routerlogin.net
User login URL
Router login
admin
User name (case-sensitive)
password
Login password (case-sensitive)
Use default hardware address
WAN MAC address
Internet connection
1500
WAN MTU size
AutoSensing
Port speed
192.168.1.1
LAN IP
Local network (LAN)
255.255.255.0
Subnet mask
Enabled
DHCP server
192.168.1.2 to 192.168.1.254
DHCP range
Pacific time
Time zone
192.168.1.2
DHCP starting IP address
192.168.1.254
DHCP ending IP address
Disabled
DMZ
Disabled
Time adjusted for daylight saving time
Disabled
SNMP
Disabled (except traffic on port 80, the HTTP port)
Inbound (communications coming in from
the Internet)
Firewall
Enabled (all)
Outbound (communications going out to
the Internet)
Disabled
Source MAC filtering
Supplemental Information
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Default Behavior
Feature
Enabled
Wireless communication
Wireless
See router label
SSID name
WPA2-PSK (AES)
Security
Enabled
Broadcast SSID
Auto
1
Transmission speed
United States in the US; otherwise, varies by region
Country/region
Auto for 2.4GHz, CH 44 for WW SKU and CH 153 for North
America SKU
RF channel
Up to 600 Mbps at 2.4 GHz, 1733 Mbps at 5 GHz
Operating mode
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 network overhead, lower actual data
throughput rate.
Technical Specifications
Table 4. R7800 router specifications
Description
Feature
TCP/IP, RIP-1, RIP-2, DHCP, PPPoE, PPTP, Bigpond, Dynamic DNS, UPnP, and SMB
Data and routing protocols
North America: 100-240V, 50/60 Hz input
UK, Australia: 100-240V, 50/60 Hz, input
Europe: 100-240V, 50/60 Hz input
All regions (output): 12V/3.5A DC output
Power adapter
11.22 x 7.26 x 1.97 in. (285 x 184.5 x 50 mm)
Dimensions
1.65 lb (750 g)
Weight
0° to 40°C
(32º to 104ºF)
Operating temperature
90% maximum relative humidity, noncondensing
Operating humidity
Supplemental Information
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Description
Feature
FCC Part 15 Class B
EN 55 022 (CISPR 22), Class B C-Tick N10947
Electromagnetic emissions
10BASE-T or 100BASE-TX or 1000BASE-T, RJ-45
LAN
10BASE-T or 100BASE-TX or 1000BASE-T, RJ-45
WAN
Maximum wireless signal rate complies with the IEEE 802.11 standard.
2
Wireless
Auto Rate Sensing
Radio data rates
IEEE® 802.11 b/g/n 2.4 GHz–256 QAM support
IEEE® 802.11 a/n/ac 5.0 GHz
Data encoding standards
Limited by the amount of wireless network traffic generated by each node (typically 50–70
nodes).
Maximum computers per wireless
network
AC2600 WiFi
3
800 Mbps @2.4GHz–256 QAM
1733 Mbps @5 GHz 11ac
Operating frequency range
WPA2-PSK and WPA/WPA2
802.11 security
2
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 network overhead, lower actual data
throughput rate.
3
NETGEAR makes no express or implied representations or warranties about this product’s compatibility with any future standards.
802.11ac 1733 Mbps is approximately 4x faster than 802.11n 450 Mbps. 2.4 GHz Performance Mode requires 256 QAM support on
the WiFi client. Up to 1733 Mbps wireless speeds achieved when connecting to other 802.11ac 1733 Mbps devices.
Supplemental Information
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Nighthawk X4S AC2600 Smart WiFi Router

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