Cisco Systems Cisco 837 manual Problems After Router Is Running

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Chapter 3 Troubleshooting

Problems After Router Is Running

Problems After Router Is Running

Table 3-2lists 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

A cable-related

Perform the following steps:

connection. (ETHERNET

problem:

1. Make sure that the connectors at both

LED 1, 2, 3, or 4 is off.)

 

 

Disconnected

ends of the cable are secure.

 

 

 

cable.

2. Make sure that the cable is not

 

 

 

 

Damaged cable.

physically damaged. If it is damaged,

 

 

 

order another cable from

 

 

 

Cisco Systems or replace it with a

 

 

 

similar cable.

 

 

 

Connection to the ADSL line

A cable-related

Make sure that the connectors are

is intermittent or lost. (The CD

problem:

secure at both ends of the cable.

LED on the front panel is off.)

Disconnected

Make sure that the cable is not

 

 

 

cable.

physically damaged. If it is damaged,

 

Damaged cable.

order another cable from

 

Cisco Systems or replace it with a

 

 

 

 

 

 

similar cable.

 

 

 

Connection to the ADSL line

Problem with ADSL

Contact your ADSL line or WAN service

or WAN port is loose. (The CD

line or WAN service.

provider to determine whether there is a

LED and the ETHERNET

 

 

problem with the ADSL or WAN service.

LED 1, 2, 3, or 4 on the front

 

 

 

panel are off).

 

 

 

 

 

 

 

 

 

Cisco 837 Router and SOHO 97 Router Hardware Installation Guide

 

 

 

 

 

 

78-14781-02

 

 

3-3

 

 

 

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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 Related Documentation Obtaining DocumentationCisco.com Documentation Feedback Documentation DVDOrdering 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 the Router Mounting on a TableMounting 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 Using the Router LEDs to Check Links Configuring the RouterChecking 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 Cabling Specifications Ethernet Cable SpecificationsMaximum Cable Distances Numerics IN-6 IN-7 IN-8