Toshiba satellite 14.4 u845w-s410 Manuel D’Utilisation

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be very helpful if you should confer with a support technician 
at a later time.

To enable or disable wireless communication, use the Hot Key 

F12

. 

For more information see 

.

❖

Use IPCONFIG to verify that the computer has a useful IP 
address 

- 

one other than the private address of 

169.254.xxx.xxx assigned by Windows

®

.

Click Start to open the Start menu.

Type 

Cmd

 in the Search programs and files field.

Enter 

IPCONFIG /ALL

 and press 

Enter

.

The IP address for each active network adapter will be 
displayed.

❖

Connect your computer directly to your router or broadband 
modem, by plugging a standard CAT5 Ethernet patch cable 
(sold separately) into your computer's RJ45 Ethernet port. If 
your connection problem disappears, the problem lies in the 
Wi-Fi

®

 part of your network.

❖

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

®

 

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.

You can never predict when your computer will lock, forcing you to 
close a program and lose unsaved changes. Many software 
programs build in an automatic backup, but you should not rely 
solely on this feature. Save your work! See