ZyXEL Communications NSA-220 ユーザーズマニュアル

NSA-220 User’s Guide

This chapter offers some suggestions to solve problems you might encounter. The potential 
problems are divided into the following categories.

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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.

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 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