Solving Problems
CAUTION: Only trained service personnel should remove the computer cover. See the Service Manual on the Dell Support website at support.dell.com for advanced service and troubleshooting instructions.
If you can not solve your problem using the following guidelines, see “Using Support Tools” on page 31 or “Contacting Dell” on page 46.
Network Problems
Wireless Connections
If the network connection is lost —
The wireless switch may be off. To turn on the wireless switch, slide it from the rear to the front of the computer until it clicks into place.
- Off 
- On
The wireless router is offline or wireless has been disabled on the computer.
•Check your wireless router to ensure it is powered on and connected to your data source (cable modem or network hub).
•
a.Save and close any open files, and exit any open programs.
b.Click Start 
→ Connect To.
c.Follow the instructions on the screen to complete the setup.
INSPIRON
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