Driver Cle Wifi Dlink Dwa140



Driver

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.

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. Get Connected, Stay Connected. DWA-131 Windows Driver Release Notes Version: 5.10b03 Hardware: E1 Date: Driver Windows XP x86 Windows XP x64 Windows Vista x86 Windows Vista x64 Windows 7 x86 Windows 7 x64 Windows 8 x86 Windows 8 x64 Windows 8.1 x86 Windows 8.1 x64 Windows 10 x86 Windows 10 x64 Enhancement: - Update D-Link digital signature - WPA2 security. 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.

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  • 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:

Software

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:

Driver cle wifi d

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
DCle

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).