Troubleshooting, 1 troubleshooting overview, 2 power, hardware, connections, and leds – ZyXEL Communications NSA-220 User Manual
Page 143: Chapter 15 troubleshooting

NSA-220 User’s Guide
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H A P T E R
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Troubleshooting
15.1 Troubleshooting Overview
This chapter offers some suggestions to solve problems you might encounter. The potential
problems are divided into the following categories.
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Power, Hardware, Connections, and LEDs
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Download Service and Broadcatching Functions
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15.2 Power, Hardware, Connections, and LEDs
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The NSA PWR LED does not turn on (no LEDs are on).
• Make sure the NSA is turned on.
• Make sure you are using the power adaptor or cord included with the NSA.
• Make sure the power adaptor or cord is connected to the NSA and plugged in to an
appropriate power source. Make sure the power source is turned on.
• Turn the NSA off and on.
• If the problem continues, contact the vendor.
V
An HDD LED is off.
The HDD LED is off when the NSA cannot detect a hard drive in the drive bay. Replace or
install a hard drive. See
Installing or replacing a hard drive