Toshiba satellite l640 ez1411 Manuel D’Utilisation

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If you have enabled any security provisions (closed system, 
MAC address filtering, Wired Equivalent Privacy [WEP], etc.), 
check the access point vendor's Web site for recent firmware 
upgrades. Problems with WEP keys, in particular, are 
frequently addressed in new firmware releases.

If you are using an external Wi-Fi

®

 adapter (USB adapter, or other 

variety), check if the adapter comes with its own management 
utility. If it does, the utility may be disabling the Windows

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operating system wireless management utility, in which case you 
must use the adapter's management utility. If the documentation 
that accompanies the adapter does not provide enough information 
to determine if this is the case, contact that vendor's support group 
for further advice.

If you experience a problem playing DVDs or BDs, you may be 
able to fix the problem yourself. 

For general problems playing a DVD or BD title, try the following 
steps:

Verify that the disc is in a format that the drive supports.

Ensure that the disc is properly inserted in the drive tray.

Use the DVD or BD player software that came with your computer 
to view DVD or BD movies.

Clean the disc and try again.

A dirty drive can also cause audio problems. If you have tried 
several discs and all fail, consider sending your drive to an 
authorized service provider to get it cleaned.

Verify that your computer recognizes your optical disc drive by 
clicking Start, and then Computer. The optical disc drive 
should appear in the list.

 for instructions 

on using Device Manager to view the optical disc drive 
properties. 

Check the Toshiba Web site for new information on optical 
disc drives and their operation.