This error is encountered frequently for D-link USB devices.
To fix this, open a terminal window and type:
Enter your password and then type the following command to install necessary libraries:
apt-get -y install ia32-libs
Once the process finishes, move on the next step and type the following commands.
mount /dev/srX /media/cdrom
- Replace "X" with 1 or 2 according to the device.
The next step involves in installing the actual drivers and software for the USB device. Open your favorite file manager and access the "CD-ROM".
Open the file dlinkusbmodem.deb and install it. After the process completes, type the following command and wait for response:
At this point you should receive a confirmation message and then your device will connect to Internet.