On the 124i, I've found that after I move extensions around (program 0502), the DSS console lights will not match.

But, if I go into program 1103 (DSS Key Assignment) from any desk set , and change anything, the lights will match afterwards. I usually just change something, then change it right back.

It usually seems to work. Setting a value to the same thing that was there before does not seem to work. I have to *change* something.