Getting Help - Dell TrueMobile 1400 User Manual

Troubleshooting: Dell TrueMobile 1400 WLAN Card User's Guide
Data transfer is sometimes
very slow.
Data transfer is always very
slow.
Computers are not
communicating with the
network.
In Microsoft® Windows® 2000,
I get the following error
message: Medium cable
disconnected. Also, there is a
red X on my network icon in
the system tray.
Network performance is really
slow when the system is
docked to a docking station
that has an active Ethernet
port. NOTE—For Windows
2000 only.

Getting help

Technical support is available online from Dell at http://support.dell.com
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file:///D|/My%20Documents/1400/trouble.htm (2 of 3) [11/15/2002 9:10:29 AM]
In the Select Network Component
Type box, select Service and click
Add. In the Select Network Service
box, select File and Printer Sharing
for Microsoft Networks and click OK.
Close the Local Area Connection
Properties box.
6. Close the Local Area Connection
Status box.
7. Close the Network and Dial-up
Connections window.
Microwave ovens and some cordless phones operate at the same radio frequency as the Dell
TrueMobile 1400 Internal Dual-band Cards. When the microwave oven or cordless phone is in
use, it interferes with the wireless network. Therefore, keep computers having the Dell
TrueMobile 1400 Internal Dual-band Cards at least 20 feet away from your microwave oven
and any cordless telephone that operates at a frequency of 2.4 GHz.
Some homes and most offices are steel-framed structures. The steel in such buildings may
interfere with your network's radio signals, thus causing a slowdown in the data transmission rate.
Try moving your computers to different locations in the building to see if performance improves.
If your network has an AP1100 access point, check all cables and make sure the power LED on
the front of the AP1100 is green.
This indicates that your computer is not properly configured to connect to the network. Verify that
all of the wireless network properties settings are correct (see
network properties). Also, make sure that your computer is receiving a good signal from the
access point. See Viewing the link status of your wireless
This condition occurs if you dock your system into a docking station that has an active Ethernet
port while your Dell TrueMobile 1180 internal Mini PCI card is still active and connected to an
access point. This happens because Windows 2000 must now handle two active network
connections. You need to either disconnect the Ethernet cable from your docking station, or
disable the radio on your Mini PCI Card. To disable the radio on your Mini PCI Card, right click on
the Dell TrueMobile 1180 utility icon icon in the system tray and click Disable Radio. NOTE—The
radio is not automatically enabled when you computer next starts. To enable the radio, right-click
on the Dell TrueMobile 1180 wireless utility icon and click Enable Radio.
select it. If this item is not present, click
Install. In the Select Network
Component Type box, select Service
and click Add. In the Select Network
Service box, select File and Printer
Sharing for Microsoft Networks and
click OK. Close the Wireless Network
Connection Properties box.
6. Close the Network Connections
window.
Viewing or modifying the wireless
connection.