MP3900X Series Router Installation Manual
Troubleshooting
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5-3
are normal.
Step 2:
Check the connection of the power cable on the power slot of the router. Re-swap the
power cable and confirm whether the power cable is loose.
Step 3:
Replace the power cable connected to the router, and then check whether the power
status LED recovers to normal. If yes, you can confirm that the original power cable has
been damaged; if no, please contact the agent or local technical service engineer for
handling.
5.4
Get Technical Support
If the fault remains via the above contents of the chapter, please contact the agent or
local technical engineers in time. Before you contact the customer service, please
prepare the following information, which is convenient for the customer service staff to
help you solve the problem.
1. The arrival time of the router
2. The serial number of the chassis (labeled on the chassis)
3. Software version number (it can be viewed via
show version
in the command line
view)
4. Maintenance agreement or warranty card
5. Simple description of the fault problem
6. Simple introduction of the taken troubleshooting steps
You can contact the customer service via the customer service hotline and you can
also search for help via the website or email.
Customer service: 400-886-8669
E-mail: [email protected]
