Simply installing a new version could not have caused any loss of locally-saved credentials.
Did you install the update into a different location? If so, simply re-install into the original folder.
Otherwise, do a search for KVS_AvailabilityTool.ini on your local machine and make sure it is placed correctly.
All installed the same way as for the other 10+ Updates. .ini was and is placed correctly, but had to re-enter all the information.