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TP-LINK CR1900

Details




Modem Information

DOCSIS 3.0 Dual Band 802.11-AC WiFi Modem

24x8 channel bonding

To achieve Gigablast or Ultimate Classic speeds, a DOCSIS 3.1 modem is required

Highest Service Level

Ultimate 500



Front View

Front view

Click to enlarge.

After the cable modem is successfully registered on the network, the Power, Downstream, Upstream, and Internet indicators illuminate continuously to indicate that the cable modem is online and fully operational.




Back View

Back view of modem

Click to enlarge.


The following ports are available on the back of the modem.

  • RESET - Use a pin to press and hold for at least 8 seconds to restore factory settings
  • WPS - The button to enable or disable the WPS function
  • WiFi ON/OFF - The button to enable or disable the WiFi function
  • USB1 and 2 - Connects to a USB storage device or printer
  • LAN1-4 - Connects devices to the 10/100/1000 RJ45 Ethernet ports. Only one port is active at a time.
  • CABLE - Connects to coaxial cable
  • DC - Connects to the power adapter
  • Power ON/OFF - The button to turn on or off the power



MAC Address / WiFi Network Label

MAC and WiFi label

Click to enlarge.


This label is located on the bottom of the device.

  • MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F).
    • A MAC address is unique.
    • The first six characters of the MAC address are unique to the manufacturer of the device.
  • The default Network Name (SSID) and Wireless Password (PIN).

Troubleshooting

The lights indicate the current status of your modem. To troubleshoot any connection problems, use the table below.
 

Modem LightStatusProblem
Power

Power light
OnNone - the modem is powered on.
OffNo power. Verify power supply connections and electrical outlet. Ensure the outlet is not connected to a switch. Press the Power ON/OFF button on the back of the modem to ensure it is turned on.
Downstream

downstream light
GreenNone - multiple downstream channels are in use.
WhiteNone - one downstream channel is in use.
FlashingNone - scanning for downstream channels. Verify all cable connections and try resetting the modem.
OffCable modem offline. Verify all cable connections and try resetting the modem.
Upstream

Upstream light
GreenNone - multiple upstream channels are in use.
WhiteNone - one downstream channel is in use.
FlashingNone - scanning for an upstream channel. Verify all cable connections and try resetting the modem.
OffNo upstream channels are in use. Verify all cable connections and try resetting the modem.
Internet

internet light
OnNone - the modem is online.
FlashingNone - the modem is initializing.
OffThe modem is offline. Verify all cable connections and try resetting the modem.
LAN

LAN light
OnNone - a device is connected to a LAN port.
OffNo devices are detected connected to a LAN port.
Wireless

wireless
OnNone - the wireless network is enabled.
OffThe wireless network is disabled. Press the WiFi ON/OFF button on the back of the modem to ensure it is turned on.
WPS

wps
On/OffNone - the light stays on for 5 minutes after WPS is established.
FlashingNone - WPS connection in progress. This may take up to two minutes.

Manufacturer Resources

For more detailed technical information on the CR1900, use the resources below.

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