Cisco Systems 80O SERIES manual Problems After Router Is Running, Symptom Problem Solutions

Chapter 3 Troubleshooting

Problems After Router Is Running

Table 3-2 Problems After First Startup (continued)

Symptom	Problem	Solutions
	• Problem with ISDN	• Contact your telephone service provider to
	line.	determine if there is a problem with your
		line.
		• If the problem continues, call your Cisco
		reseller.

Problems After Router Is Running

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

Table 3-3 Problems After Router Is Running

Symptom	Problem			Solutions
Problems with Ethernet link.	•	One of the		Perform the following tasks in the following
(On Cisco 801, Cisco 802,		following		order:
and Cisco 802 IDSL routers,		cable-related		• Make sure the connectors at both ends
the LINK LED on the back		problems:
				of the cable are securely connected.
panel blinks. On Cisco 803
		–	Disconnected	• Make sure the cable is not physically
and 804 routers, the LKØ,
			cable.
LK1, LK2, or LK3 LED on the				damaged. If it is, replace it.
		–	Damaged
front panel blinks. On the
Cisco 804 IDSL router, the			cable.
ETHERNET 1, 2, 3, or 4 LED
on the front panel blinks.)
	•	Improperly		• Run the NIC diagnostic supplied by the
		functioning NIC on		vendor to make sure it is functioning
		server, PC, or		properly. If it is not, replace it.
		workstation.
				• If the problem continues, call your
				Cisco reseller.
Connection to an Ethernet	•	A cable-related		• Make sure the connectors at both ends
device is intermittent or lost.		problem:		of the cable are securely connected.
(On Cisco 801, 802, and 802		–	Disconnected	• Make sure the cable is not physically
IDSL routers, the LINK LED
			cable.	damaged. If it is damaged, replace it.
on the back panel is off. On
		–	Damaged
Cisco 803 and 804 routers, the
LKØ, LK1, LK2, or LK3 LED			cable.
on the front panel is off. On the
Cisco 804 IDSL router, the
ETHERNET 1, 2, 3, or 4 LED
on the front panel is off.)
	•	Improperly		• Run the NIC diagnostic supplied by the
		functioning NIC on		vendor to determine if it is functioning
		server, PC, or		properly. If it is not, replace it.
		workstation.
				Cisco 800 Series Routers Hardware Installation Guide
78-5373-04					3-5