User guide

EtherFast Cable/DSL Router

Troubleshooting

Common Problems and Solutions

This section provides possible solutions to problems regarding the installation

and operation of the Cable/DSL Router. Read the description below to solve

your problems. If you can’t find an answer here, check the Linksys website at

www.linksys.com.

1. I Can’t connect to the Cable/DSL Router.

• Verify that the Cable/DSL Router is properly installed, LAN connec-

tions are OK, and it is powered ON.

• Make sure that your PC and the Cable/DSL Router are on the same net-

work segment. If you are not sure, initiate the DHCP function and let

the PC get the IP address automatically.

• Make sure that your PC is using an IP address within the default range

of 192.168.1.2 to 192.168.1.254 and thus compatible with the

Cable/DSL Router default IP Address of 192.168.1.1.

• The Subnet Mask should be set to 255.255.255.0 to match the

Cable/DSL Router. In the Cable/DSL Router, you can check these set-

tings by using Control Panel-Network to check the Properties for the

TCP/IP protocol.

2. The Diag LED stays lit when it shouldn’t.

• The Diag LED lights up when the device is first powered up.

Meantime, the system will boot up itself and check for proper opera-

tion. After finishing the checking procedure, the LED turns off to show

the system is working fine. If the LED remains lit after this time, the

device is not working properly. Try to re-flash the firmware by assign-

ing a static IP address to the computer, then upgrade the firmware

again. If that doesn’t help, contact your dealer for further information.

Instant Broadband Series

The QoS (Quality of Service) settings allow you to prioritize performance.

To use QoS, select Enable. There are five preset applications which utilize

QoS: FTP, HTTP, Telnet, SMTP, and POP3. You can choose three additional

applications by inputing that information in the empty boxes below.

You can also prioritize up to four ports with the Port-based QoS. The

Routers other four ports are automatically assigned Low Priority.

Quality of Service