Yes there was a change. The problem, as I recall, was that if you asked for the whole dataset when the dataset had a lot of variables, it generated a very long constraint that specified every variable in the dataset. Honestly, I think the server you are using should not have that restriction. A purely size of response based restriction makes much more sense. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: TMR-458993 Department: Support netCDF Priority: Urgent Status: Closed