Password entered during installation is changed to LLS default password after the following sequence of events.
LLS Service start -> Settings update -> Service restart (to let the settings change take effect). 
 
Avoiding this behavior will save server admin's time in changing password every time setting is changed. 
@Kosi @SeanAdams @ydmuley @RajK @LizaNemchynova @Arianna_Fuller @MPistone