D-Link DWA-140 User Manual 4 Section 1 - Product Overview Introduction The DWA-140 RangeBooster N™ USB Adapter is a convenient wireless connectivity solution for desktop or notebook PCs. Instead of stringing Ethernet cables to your PC or dismantling your desktop computer case, the DWA-140 can. About Wireless LAN Drivers: Windows OSes usually apply a generic driver that allows systems to recognize the wireless component. However, in order to use all available features of this hardware, you must install the appropriate drivers. Contact Premium Support. This product has been discontinued. Free support for this product has ended on. D-Link is a world leader in networking hardware manufacturing. Information about our award winning Fast Ethernet Network Adapters, Hubs, Switches, Network Kits, and USB products. Technical Support Hotline (Local Toll Free): 18 Mon-Sun 9am – 6pm.

This page gives a user's notes about their experience in using this device. This page should be edited to reflect other users' experiences over time.

Manufacturer: D-Link
Model #: DWA-140
This user's hardware version: B1
This user's firmware version: 1.10

This unit is successfully detected during installation of Ubuntu 12.04. The driver 'rt2800usb' is utilised by default when this unit is detected, as demonstrated by the following terminal command:

Which will produce output similar to:

On detection of this device, the NetworkManager will allow a connection to a wireless router. However in my experience, the wireless connection would hang very frequently. A connection would be quickly established, but after a short time (varying between 1 and 10 minutes) no data would be successfully sent or recieved over the connection. It appeared that I hadn't been 'disconnected' (as indicated by the wireless connection icon on the right side of the Unity panel at the top of the screen). Once the connection has hung, I could fix the problem by clicking on the WiFi icon in the top right of the screen, select 'Disconnect', then click the same icon again to reconnect to the network (which it invariably did sucessfully and quickly).

It appears that the behaviour described above is due to a default low number of 'retries' for retransmission of packets in the face of radio frequency interference. The default setting can be observed with the following command:

iwconfig

Which will produce output similar to:

Using the command:

Radric delantic davis. appears to solve the problem for the duration of a user session. Unfortunately, the retry limit is reset to 7 on every reboot.

By adding the above command to a script, these settings take effect after every reboot. First, open the script which is run whenever a network is established:

sudo gedit /etc/network/if-up.d/upstart

Then, insert the following lines into that script:

These settings persist if the connection is dropped or changed, but don't take effect if the device is unplugged and then plugged in again.

Other iwconfig settings which looked like they might offer some solution to similar problems, but that I haven't yet had to alter to have success:

sens
rts
frag

Various forum posts suggest turning the power (management) setting off using iwconfig, but this did not help in this instance (DWA-140 used with a desktop PC).

Product Status: End of Sale

The DWA-140 Wireless N USB adapter delivers fast wireless performance for PCs and notebooks. Upgrade to wireless N technology with ease by adding this adapter to access your high-speed Internet connection while sharing photos, files, music, video, printers and storage.

Give Your Desktop or Notebook PC the Gift of Better Wi-Fi Connectivity with this Wireless N USB Adapter

Driver Cle Wifi D'link Dwa 140 Plus

Ultimate performance - get the latest technology and stay compatible with 802.11b & 802.11g
Wireless protection - connect securely using WEP, WPA and WPA2 Total connection - reception virtually anywhere in your home or office by connecting to Wireless N router

Ultimate Performance
Enhance your Internet experience with a faster wireless connection and enjoy smooth digital phone calls, gaming, downloading and video streaming.

Get Connected, Stay Connected
By connecting the DWA-140 to a Wireless N router, you will maximize wireless performance and remain connected from virtually anywhere in your home. It can also be used with 802.11g and 802.11b wireless networks to enable significantly improved reception. This adapter supports WPA/WPA2 security and WEP data encryption to help prevent outside intrusion and protect your personal information.

Easy to Set Up and Use
Click'n Connect, D-Link's quick setup wizard, guides users step-by-step through the installation process, meaning you can configure this adapter in minutes without fear of having to call in a networking expert! The Wireless Manager included also helps keep track of the most frequently accessed networks.

With unrivalled wireless performance, coverage and security, this adapter is the best choice for easily adding or upgrading wireless connectivity to desktop or laptop computers.

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Specs

Wireless N
Interface	USB 2.0
300 Mbps 2.4 GHz

How do I find my IP address in Windows Vista or Windows 7
Vad är Draft-11n?

D-link Dwa 140 Driver

When I try to connect to my network Windows asks for a network key but I do not know what it is. How can I find out?
Kan jag använda mig av WEP kryptering på min 11N router?

Support

Downloads can vary across product revisions. Please select the correcthardware revision.

Driver Cle Wifi Dlink Dwa140