trying https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/desktop-software/nrf-sniffer/sw/nrf_sniffer_for_bluetooth_le_4.1.1.zip
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
100  1.10M 100  1.10M   0      0  3.01M      0                              0
100  1.10M 100  1.10M   0      0  3.01M      0                              0
100  1.10M 100  1.10M   0      0  3.01M      0                              0
unpacking source archive /build/nrf_sniffer_for_bluetooth_le_4.1.1.zip