The client expiration issue (doesn't count as an in use license if node has
not been used in 30 dyas) is one part that TSM Licensing actually works for
...

In our case we have 14 Nodes that have not been accessed in over 30 days. A
query license does not inlcude these nodes - only counts nodes that have
accessed the server in the last 30 days.

Tim Rushforth
City of Winnipeg