Unable to start driver ZWaveError: The network key must be a buffer with length 16!

If you are moving from openzwave to zwave-js and using the old network key in zwave-js configuration, results in error.
zwave and openzwave uses network key in the format like

0x6E, 0xD5, 0x00, 0x2B, 0xCE, 0x00, 0x27, 0xFA, 0xCE, 0xE2, 0x76, 0x8D, 0x81, 0xCF, 0xD6, 0x09

zwave-js expects the same key in
you need to remove 0x and ,.
Hope this helps


Thanks. Was just looking this up but you save me the trouble

That was very helpful!!! Thanks!