Jeff- I did the following command: ncdump -v time "http://nomad1.ncep.noaa.gov:9090/dods/reanalyses/reanalysis-1/6hr/pgb/pgb" and it returned the result in under a second from the server in under a second. So I assume your test differed from the above. Can you send me a specific ncdump command that hung? =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: XHX-254015 Department: Support netCDF Priority: Normal Status: Closed