We encourage users to download and installecCodes, the default ECMWF GRIB en/decoding software. (NOTE: ECMWF has changed the default GRIB decoding/encoding package on all ECMWF platforms fromGRIB-APIto ecCodes (starting from version 2.0.0)).
If you are not using GRIB decoders developed by ECMWF, make sure that your software is configured to use the correct GRIB table to decode the data.