Cisco Systems Cisco 837 manual Problems During First Startup, Symptom Problem Solutions

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Chapter 3 Troubleshooting

Problems During First Startup

Problems During First Startup

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

Table 3-1 Problems During First Startup

Symptom

Problem

Solutions

 

 

 

All LEDs,

No power to router

Perform the following steps:

including OK

 

 

1. Make sure that the power switch is set to ON.

LED, are off.

 

 

 

 

2. Make sure that all connections to and from the power

 

 

 

 

 

 

 

 

 

 

supply are secure.

 

 

 

 

 

3. Make sure that the power outlet has power.

 

 

 

 

 

4. If the problem continues, the power supply might be

 

 

 

 

 

faulty. Contact your Cisco reseller.

 

 

 

No connection to

A cable-related

Perform the following steps:

Ethernet device.

problem:

1. To make sure that you have cabled the device

(Ethernet 1 LED is

 

 

Improperly

correctly, see the “Connecting a Terminal or PC to

off.)

 

connected cable.

the Router’s Console Port (Optional)” section on

 

 

 

 

 

 

 

Damaged cable.

page 2-15.

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

No connection to

Wrong cable

To make sure that you are using the correct cable, see

ADSL link. (The

 

 

Appendix A, “Specifications and Cables.”

CD LED on the

 

 

 

 

front panel is off

 

 

 

 

for a long time.)

 

 

 

 

 

 

 

No connection to

Improperly connected

To make sure that you have connected the ADSL

ADSL link. (The

cable

cable properly, see the “Connecting an ADSL Line”

CD LED on the

 

 

section on page 2-13.

front panel is off

 

 

Make sure that the connectors at both ends of the

for a long time.)

 

 

 

 

cable are securely seated.

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco 837 Router and SOHO 97 Router Hardware Installation Guide

 

 

3-2

 

 

 

 

78-14781-02

 

 

 

 

 

 

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Contents Corporate Headquarters Page Copyright 2005 Cisco Systems, Inc. All rights reserved Page N T E N T S Connecting a Server, PC, or Workstation Vii Viii Audience OrganizationConventions Preface Cisco.com Related DocumentationObtaining Documentation Ordering Documentation Documentation FeedbackDocumentation DVD Reporting Security Problems in Cisco Products Cisco Product Security OverviewObtaining Technical Assistance Cisco Technical Support WebsiteSubmitting a Service Request XviDefinitions of Service Request Severity Obtaining Additional Publications and InformationXviii Product Overview Features Feature DescriptionRouter Overview Front Panels Cisco 837 Front PanelBack Panel Cisco 837 Back PanelLED Functions LEDInstallation Preparing for Installation SafetyInstallation Preparing for Installation Preventing Electrostatic Discharge Damage Unpacking the Box Ordered SeparatelyPreventing Damage to the Router Mounting on a Wall Mounting the RouterMounting on a Table Wall-Mounting Brackets Bottom of Router To mount the router, follow the steps given after Figure Installing the Router Connecting Ethernet Devices Connecting a Server, PC, or WorkstationConnecting a Server, PC, or Workstation to the Router Connecting an Adsl Line Connecting an Adsl Line to a Wall Jack Console port on the router DB-9 connector Connecting the AC Adapter Connecting the AC Adapter Connecting the Console Port to an Async Modem Connecting the Console Port to an Async Modem Checking the PC Configuration Using the Router LEDs to Check LinksConfiguring the Router Using Cisco Router Web Setup to Configure the Router Installation Using the Router LEDs to Check Links Installation Using the Router LEDs to Check Links Installation Using the Router LEDs to Check Links Troubleshooting Before You Call Your Cisco ResellerProblems During First Startup Symptom Problem SolutionsProblems After Router Is Running Troubleshooting Problems After Router Is Running Specifications and Cables System SpecificationsPort Connector Pinouts Description Design Specification Router PowerDSR CTS Maximum Cable Distances Cabling SpecificationsEthernet Cable Specifications Numerics IN-6 IN-7 IN-8