A TPT extract that creates a very large extract (about 100GB uncompressed size) times out in approximately 1 hour after completing about 40% of the extract. This has happened repeatedly with different number of instances and different buffer sizes. This is the largest extract in our system. We didn't have this issue with any other extracts.
The error is:
there's no timeout on Teradata side, only for logons, otherwise it's always a restriction on client side.
But this might be due to a TASM rule automatically aborting prolonged idle sessions.
You should check QueryLog what actaully happend and/or ask your DBA for help.