Table Of Contents

Troubleshooting

Before You Call Your Cisco Reseller

Problems During First Startup

Problems After Router Is Running

Troubleshooting

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This chapter describes problems that could occur with the router hardware, possible causes of the problems, and steps for solving the problems. The problems are grouped into the following areas:

•During first startup

•After router has been up and running

For information on problems that could occur with the software, refer to the Cisco 827 Routers Software Configuration Guide.

Before You Call Your Cisco Reseller

Some of the solutions in this chapter instruct you to contact your Cisco reseller. Before calling your reseller, have the following information ready:

•Router model and serial number (on the back panel)

•Maintenance agreement or warranty information

•Date you received the router

•Brief description of the problem

•Brief description of the steps you have taken to solve the problem

Problems During First Startup

Table 3-1 lists problems that could occur the first time you turn on the power switch.

Table 3-1 Problems During Initial Boot 

Symptom	Problem	Solutions
All LEDs, including OK LED, are off.	No power to router	Perform the following tasks: 1. Make sure that all connections to and from the power supply are secure. 2. Make sure that the power outlet has power. 3. Make sure that the power switch is set to ON. 4. If the problem continues, the power supply might be faulty. Contact your Cisco reseller.
No connection to Ethernet device. (ETHERNET 1 LED is off.)	A cable-related problem: •Improperly connected cable •Damaged cable	Perform the following tasks: 1. Make sure that you have cabled the device correctly. See Figure 2-1 or Figure 2-2 in "Installation." 2. Make sure that the connectors at both ends of the cable are securely seated. 3. Make sure that the cable is not physically damaged. If it is damaged, order another cable from Cisco or replace it with a similar cable.
Ethernet port errors.	Improperly set router TO HUB/TO PC button or hub equivalent of TO HUB/TO PC button	•Make sure that you have set the buttons correctly. See Table 2-2 in "Installation." •Make sure that the correct cable is used to establish the connection.
No connection to ADSL link. (The CD LED on the front panel is off for a long time.)	A cable-related problem: •Improperly connected cable •Damaged cable •Incorrect cable	•Make sure that you have cabled the router properly. See "Installation." •Make sure that the connectors at both ends of the cable are securely seated. •Make sure that the ADSL port is connected to the correct port on the ISDN splitter. •Make sure that you are using the correct cable. See "Specifications and Cables."

Problems After Router Is Running

Table 3-2 lists problems that could occur after the router has been up and running.

Table 3-2 Problems After Router Is Running 

Symptom	Problem	Solutions
Problems with Ethernet connection. (ETHERNET 1 LED is off or blinking.)	A cable-related problem. The cable might be disconnected or damaged cable.	•Make sure that the Ethernet port is not configured to be administrativly down. •Make sure that the device connected to the Ethernet port is connected, powered on, and properly configured.
Connection to the ADSL line is intermittent or lost. (The CD LED on the front panel is off.)	A cable-related problem. The cable might be disconnected or damaged cable.	•Make sure that the Ethernet port is not configured to be administratively down. •Make sure that the device connected to the Ethernet port is connected, powered on, and properly configured.
Router is not communicating with the ADSL switch.	Problem with ADSL or WAN service.	•Check all passwords and device names to make sure that they are correct. •Contact your ADSL or WAN service provider to determine whether there is a problem with the service.