DELL 580 用户手册

If the network connection is lost — The 

wireless router is offline or wireless has been 

disabled on the computer. 

Check your wireless router to ensure it is 

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powered on and connected to your data 

source (cable modem or network hub).
Re‑establish your connection to the 

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wireless router (see “Setting Up a Wireless 

Connection” on page 15).

If the network connection is lost — 

Check the cable to ensure it is plugged in 

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and not damaged.
Check the status of the link integrity light.

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The link integrity light on the integrated network 

connector lets you verify that your connection is 

working and provides information on the status:

Off — The computer is not detecting a 

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physical connection to the network. 
Solid green — A good connection exists  

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between a 10/100‑Mbps network and the 

computer.
Solid orange — A good connection exists  

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between a 1000‑Mbps network and the 

computer.

NOTE: The link integrity light on the network 

connector is only for the wired cable 

connection. The link integrity light does not 

provide status for wireless connections.

If the problem persists, contact your network 

administrator.