Problems After Router Is Running - Cisco 805 Hardware Installation Manual

Table 3-1 Problems During First Startup (continued)
Symptom Problem
• Improperly connected
• Improperly functioning
• Router improperly

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
Problems with Ethernet
connection. (The LINK LED on
the back panel is off.)
cable.
modem or channel
service unit/data
service unit
(CSU/DSU).
configured as a DTE or
DCE.
Problem
• A cable-related problem:
— Disconnected cable.
— Damaged cable.
Solutions
• To make sure that you have cabled properly, refer to Figure 2-5
in Chapter 2, "Installing the Cisco 805 Router."
• Make sure the connectors at both ends of the cable are securely
seated.
• Refer to the documentation that accompanies your modem or
CSU/DSU.
• By default, the router is configured as a DTE. Check the
setting of the clock rate command to determine if it is set
properly. If a clock rate speed is not specified, the router is
configured as a DTE. If a clock rate speed is specified, the
router is configured as a DCE.
Solutions
Perform the following tasks in the following
order:
Make sure the connectors at both ends of the
1
cable are secure.
Make sure the cable is not physically damaged.
2
If it is damaged, order another cable from
Cisco or replace it with a similar cable.
Problems After Router is Running
Troubleshooting 3-3