Posted July 11, 20205 yr I have two Z-Wave controllers -- the ISY and a Z-Stick on my Home Assistant RPi. I just noticed today that HA is having issues talking to my secure devices and in going through logs found that it's missing the network key. Is there a way to extract the network key that the ISY is using on the Z-Wave network? In going through the backups, I see a UZWNDKEY.TXT file, but that has an integer in it, and OpenZWave on HA is looking for a string of hex digits (ex. 0xC0, 0x46, 0xBD, 0x0B, 0x67, 0x89, 0x09, 0x12, 0x33, 0x3D, 0x60, 0x6C, 0x72, 0x71, 0x49, 0xAA). Even if I convert the value in that file to hex, it doesn't give me anywhere near enough bytes of data for a 16-byte key. I assume it is somewhere in UZWBK001.BIN, but without knowing the format of that file there is no real way for me to track down 16 bytes of a key. Any suggestions?
July 11, 20205 yr 13 minutes ago, drich said: I have two Z-Wave controllers -- the ISY and a Z-Stick on my Home Assistant RPi. I just noticed today that HA is having issues talking to my secure devices and in going through logs found that it's missing the network key. Is there a way to extract the network key that the ISY is using on the Z-Wave network? In going through the backups, I see a UZWNDKEY.TXT file, but that has an integer in it, and OpenZWave on HA is looking for a string of hex digits (ex. 0xC0, 0x46, 0xBD, 0x0B, 0x67, 0x89, 0x09, 0x12, 0x33, 0x3D, 0x60, 0x6C, 0x72, 0x71, 0x49, 0xAA). Even if I convert the value in that file to hex, it doesn't give me anywhere near enough bytes of data for a 16-byte key. I assume it is somewhere in UZWBK001.BIN, but without knowing the format of that file there is no real way for me to track down 16 bytes of a key. Any suggestions? probably not since that info should be encrypted
July 12, 20205 yr Author 23 hours ago, Mecheng70 said: Have you tried your Mac address repeated several times? I have now :-), but no luck. I tried it both starting and ending with a full MAC as well as a bunch of leading or trailing zeros and the MAC once. All three failed to communicate with my secure devices. Edited July 12, 20205 yr by drich
July 20, 20205 yr Author So I found a solution: exclude the Z-Stick and include it back using the Z-Wave PC Programmer (formerly ZenSys Tools). It puts the security key in the logs, and it can then be typed into whatever place you need it (you can't cut-n-paste from those logs unfortunately).
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