H3C Technologies H3C MSR 3600 - Manual (Page 72)

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Interface module, cable, and connection failure
Symptom
After an interface module is installed and the router is powered on, the LEDs on the interface module
panel indicate that the interface module is operating incorrectly.
Solution
To resolve the problem:
1. Verify that the interface module makes good contact with the rear panel of the router slot.
2. Verify that the router supports the interface module.
3. Verify that the interface module is installed in the specified router slot.
4. Verify that a correct cable is used.
5. Verify that the cable is correctly connected.
6. If the problem persists, contact H3C Support.
Restoring the factory settings
Scenario 1
Symptom
When you replace the router, the router password is lost. As a result, you cannot log in to the router and
do not know the router configuration.
Solution
Because the router is replaced, you do not need to save the configuration of the router. In this case, you
can press the Reset button for more than 4 seconds to reboot the router and restore the factory settings.
Then, you can use the username and password shipped with the router to log in to the router.
When the router configuration must be saved and you have a console cable, you can log in to the router
through the BootWare menu.
Scenario 2
Symptom
After the configuration is modified, the network connectivity is lost. When you check the configuration,
the configuration is very complicated and it is hard to locate the errors. In this case, you must configure
the router again.
Solution
If you have not saved any configuration, you can reboot the router by pressing the Reset button for a short
time or power off the router.
If you have saved some configurations, you can use the CLI to delete the configuration file.