D-Link Wireless ADSL2/2+ 4-port Ethernet Router DSL-2640U - Manual (Page 5)

4
Front Panel View
LED Mode Indication
Solid Green The router is powered on. (READY)
No light The power is off. Power
Red Failure or device malfunction. (NOT READY)
Status
Flashing
Green Traffic is passing through the device. (INTERNET
TRAFFIC)
Solid Green DSL is synchronized.
No Light No carrier signal.
Slow Flashing DSL attempting synch. Trying to detect carrier signal.
DSL
Fast Flashing Carrier has been detected and router is trying to train.
Solid Green
Wireless is up.
Flashing Wireless traffic is passing through. WLAN
No Light Wireless is down.
Solid Green Powered device connected to associated port
Flashing
Green
LAN activity present (traffic in either direction).
LAN 1-4
No Light
No activity, router power off, no cable or no powered
device is connected to the LAN port.
Solid Green
IP connected (device has a WAN IP address from IPCP or
DHCP and DSL is up or a static IP address is configured,
PPP negotiation has completed successfully (if used),
and DSL is up. (WAN IP AVAILABLE)
No Light
Router power off, router in bridge mode or ADSL
connection not present.
Internet
Red
Device attempted to become IP connected and failed
(no DHCP response, no PPPoE response, PPPoE
authentication failed, no IP address from IPCP, etc.).
(WAN IP NOT AVAILABLE)