Cisco Systems Cisco 837 manual Troubleshooting, Before You Call Your Cisco Reseller

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C H A P T E R 3

Troubleshooting

This chapter describes symptoms of problems that could occur with the Cisco 837 or SOHO 97 routers, identifies the likely underlying problems, and provides steps for solving the problems. The problems are grouped as follows:

Problems During First Startup

Problems After Router Is Running

For more information about problems that could occur with the software, refer to the Cisco 800 Series 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 you contact your reseller, make sure that you have the following information available:

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

 

 

Cisco 837 Router and SOHO 97 Router Hardware Installation Guide

 

 

 

 

 

 

78-14781-02

 

 

3-1

 

 

 

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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 Organization AudienceConventions Preface Obtaining Documentation Related DocumentationCisco.com Documentation DVD Documentation FeedbackOrdering Documentation Cisco Product Security Overview Reporting Security Problems in Cisco ProductsCisco Technical Support Website Obtaining Technical AssistanceXvi Submitting a Service RequestObtaining Additional Publications and Information Definitions of Service Request SeverityXviii Product Overview Feature Description FeaturesRouter Overview Cisco 837 Front Panel Front PanelsCisco 837 Back Panel Back PanelLED LED FunctionsInstallation Safety Preparing for InstallationInstallation Preparing for Installation Preventing Electrostatic Discharge Damage Ordered Separately Unpacking the BoxPreventing Damage to the Router Mounting on a Table Mounting the RouterMounting on a Wall Wall-Mounting Brackets Bottom of Router To mount the router, follow the steps given after Figure Installing the Router Connecting a Server, PC, or Workstation Connecting Ethernet DevicesConnecting 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 Configuring the Router Using the Router LEDs to Check LinksChecking the PC Configuration 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 Before You Call Your Cisco Reseller TroubleshootingSymptom Problem Solutions Problems During First StartupProblems After Router Is Running Troubleshooting Problems After Router Is Running System Specifications Specifications and CablesDescription Design Specification Router Power Port Connector PinoutsDSR CTS Ethernet Cable Specifications Cabling SpecificationsMaximum Cable Distances Numerics IN-6 IN-7 IN-8