Pete and David, I changed the CONDUIT request lines at NSF and Unidata to request data from ldm1.woc.noaa.gov rather than ncepldm.woc.noaa.gov after seeing lots of disconnect/reconnects to the ncepldm virtual name. The LDM appears to have caught up here as an interim solution. Still don't know the cause of the problem. Steve -- Steve Chiswell <address@hidden> Unidata