The only other key chain issue occurred "once" when browser key chain and certificates failed in all browsers, but a restart cleared that up.
now its strictly dealing with:
"it seems to not always join the wifi at office or home unless I trash contents of cache folders of
1./Volumes/Macintosh...
You cannot install Login & Keychain Update on this volume. This volume does not meet the requirements for this update.
The "above" is the message in dialog box that "installer" shows me on every download of this update. And I've checked to see!
It isn't installed at all.
My wife is on...