Laptop User Manual

203
If Something Goes Wrong
Wireless networking problems
site, the ISP’s (Internet Service Provider) service may be
disrupted.
❖ Verify that the Service Set Identifier (SSID), or network
name, is correct—i.e., that it matches the SSID assigned to the
access point you are attempting to connect through. SSIDs are
case-sensitive.
❖ Check the Windows
®
Control Panel's Device Manager to verify
that the Wi-Fi
®
adapter is recognized by the Windows
®
operating system, and that the driver is loaded. To access the
Device Manager, click Start, Control Panel, 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.
❖ 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
®
.
1 Click Start to open the Start menu.
2 Type
Cmd in the Search programs and files field.
3 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.
The Windows
®
operating system wireless management utility
does not work.
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.