Toshiba protege r950 Manuale Utente

160

System and Security, and then System. Carefully note any 

error messages - these will be very helpful if you should confer 

with a support technician at a later time.

To enable or disable wireless communication, use the 

F8 key

. 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

®

.

From the Start screen, type 

Cmd

.

Click Command Prompt.

Enter 

IPCONFIG/ALL

, and then 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 (an ExpressCard

®

, 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.