D-Link DMW-156 is a 3g USB dongle, when I plugin to the usb it shows green light for few seconds and then red light.Have tried the following commands on the terminal.

sudo mount /dev/sr1/mnt
mount: /mnt: special device /dev/sr1 does not exist.

sudo mount /dev/sr0/mnt
mount: /mnt: no medium found on /dev/sr0.

Thanks for the help


  • AFAIK, the debian package on the modem itself is x86 and will therefore not work on the Pi. Best option is probably to check sakis3g. Apr 13, 2021 at 8:36
  • erm, you don't "mount" network adapters Apr 13, 2021 at 11:10
  • try dmesg ... see if there's any errors/messages regarding that adapter Apr 13, 2021 at 11:15
  • @dmesg ..no errors..have attached the screenshot please check out. Apr 13, 2021 at 13:02


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