Cisco 1700 - Manual (Page 54)

Chapter 3 Troubleshooting
3-6
Cisco 1700 Router Hardware Installation Guide
78-5405-03
Step 3 Enter the config-register command and the original
configuration register value that you recorded in
Step 5 .
Step 4 Press Ctrl-Z to exit configuration mode.
Router(config)# Ctrl-Z
Step 5 Save your configuration changes:
Router# copy running-config startup-config
Reset the Configuration Register Value
Once you have recovered or reconfigured a password
Step 1 Enter the configure terminal command to enter
configuration mode:
Router# configure terminal
Step 2 Enter the config-register command and the original
configuration register value that you recorded in
Step 5 .
Step 3 Press Ctrl-Z to exit configuration mode:
Router(config)# Ctrl-Z
Step 4 Reboot the router, and enter the recovered password.
Problem Solving
The key to problem solving is to isolate the problem to a specific subsystem by
comparing what the router is doing to what it should be doing.
When problem solving, consider the following subsystems of the router:
• WAN interface cards—Refer to the LEDs on the cards and the LEDs on the
router front panel to help identify a failure. For more information on WAN
interface cards, refer to the Cisco WAN Interface Cards Hardware
Installation Guide that comes with each card.
• Cables—Check all the external cables that connect the router to the network.