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XGS2220 Series User’s Guide
689
CHAPTER 81
Troubleshooting
This chapter offers some suggestions to solve problems you might encounter. The potential problems are
divided into the following categories.
• Power, Hardware Connections, and LEDs
• Switch Access and Login
• Switch Configuration
• PoE Supply
• Nebula Registration
81.1 Power, Hardware Connections, and LEDs
The Switch does not turn on. None of the LEDs turn on.
1 Make sure you are using the power adapter or cord included with the Switch.
2 Make sure the power adapter or cord is connected to the Switch and plugged in to an appropriate
power source. Make sure the power source is turned on.
3 Disconnect and re-connect the power adapter or cord to the Switch.
4 If the problem continues, contact the vendor.
One of the LEDs does not behave as expected.
1 Make sure you understand the normal behavior of the LED. See Section 3.3 on page 54.
2 Check the hardware connections. See Section 3.1 on page 45.
3 Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4 Disconnect and re-connect the power adapter or cord to the Switch.
5 If the problem continues, contact the vendor.
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