Try making this change to the netcdf code and then rebuild and rerun using HTTP.NETRC and not using HTTP.USERPASSWORD. In oc2/ocrc.c, change lines 94-95 from > if(user == NULL) user = ""; > if(pwd == NULL) pwd = ""; to > if(user == NULL || pwd == NULL) > return NULL; The line numbers are approximate. It is in the function combinecredentials(). =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: HAW-868287 Department: Support netCDF Priority: Normal Status: Open =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.