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Summit 300-48 Switch Software User Guide 183
D Troubleshooting
If you encounter problems when using the switch, this appendix may be helpful. If you have a problem
not listed here or in the release notes, contact your local technical support representative.
LEDs
Power LED does not light:
Check that the power cable is firmly connected to the device and to the supply outlet.
On powering-up, the MGMT LED lights yellow:
The device has failed its Power On Self Test (POST) and you should contact your supplier for advice.
A link is connected, but the Port Status LED does not light:
Check that:
• All connections are secure.
• Cables are free from damage.
• The devices at both ends of the link are powered-up.