ES3500 Series User’s Guide 335
CHAPTER 46
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
46.1 Power, Hardware Connections, and LEDs
The Switch does not turn on. None of the LEDs turn on.
1 Make sure the Switch is turned on.
2 Make sure you are using the power adaptor or cord included with the Switch. For the ES3500-8PD,
make sure the upstream PSE is connected to port 9 and the PD LED is on.
3 Make sure the power adaptor or cord is connected to the Switch and plugged in to an appropriate
power source. Make sure the power source is turned on.
4 Turn the Switch off and on.
5 Disconnect and re-connect the power cord to the Switch.
6 If the problem continues, contact the vendor.
The ALM LED is on.
1 Turn the Switch off and on.
2 Disconnect and re-connect the power adaptor or cord to the Switch.
3 If the problem continues, contact the vendor.
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