TP-Link Archer CR1900 Wireless Wi-Fi Cable Modem user manual
- June 7, 2024
- Cox
Table of Contents
TP-Link Archer CR1900 Wireless Wi-Fi Cable Modem
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Modem Information
DOCSIS 3.0 Dual Band 802.11-AC WiFi Modem
24×8 channel bonding
To achieve Gigablast or Ultimate Classic speeds, a DOCSIS 3.1 modem is required
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Highest Service Level
Ultimate 500
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Front View
| | 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.
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Back View
| | 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
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MAC Address / WiFi Network Label
| | 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 Light | Status | Problem |
|---|
Power
| On| None – the modem is powered on.
Off| No 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
| Green| None – multiple downstream channels are in use.
White| None – one downstream channel is in use.
Flashing| None – scanning for downstream channels. Verify all cable
connections and try resetting the modem.
Off| Cable modem offline. Verify all cable connections and try resetting the
modem.
Upstream
| Green| None – multiple upstream channels are in use.
White| None – one downstream channel is in use.
Flashing| None – scanning for an upstream channel. Verify all cable
connections and try resetting the modem.
Off| No upstream channels are in use. Verify all cable connections and try
resetting the modem.
Internet
| On| None – the modem is online.
Flashing| None – the modem is initializing.
Off| The modem is offline. Verify all cable connections and try resetting the
modem.
LAN
| On| None – a device is connected to a LAN port.
Off| No devices are detected connected to a LAN port.
Wireless
| On| None – the wireless network is enabled.
Off| The wireless network is disabled. Press the WiFi ON/OFF button on the
back of the modem to ensure it is turned on.
WPS
| On/Off| None – the light stays on for 5 minutes after WPS is established.
Flashing| None – 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.
- TPLink_CR1900(US)_V1_QIG [PDF]
- TPLink_CR1900(US)_V1_UG [PDF]
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