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Gerry, Among your LDM log messages, I found these: Apr 15 10:44:21 bigbird idd.cise-nsf.gov[10425] WARN: Couldn't resolve "idd.cise-nsf.gov" to an Internet address in 20.9435 seconds Apr 15 10:44:43 bigbird eldm.fsl.noaa.gov[10434] WARN: Couldn't resolve "eldm.fsl.noaa.gov" to an Internet address in 25.205 seconds Apr 15 10:46:41 bigbird idd.unidata.ucar.edu[10433] ERROR: Connection reset by peer Apr 15 10:46:41 bigbird idd.unidata.ucar.edu[10433] ERROR: readtcp(): read() error on socket 4 Apr 15 10:46:41 bigbird idd.unidata.ucar.edu[10433] ERROR: one_svc_run(): RPC layer closed connection Apr 15 10:46:41 bigbird idd.unidata.ucar.edu[10433] ERROR: Disconnecting due to LDM failure; Connection to upstream LDM closed Apr 15 10:46:41 bigbird idd.unidata.ucar.edu[10433] NOTE: LDM-6 desired product-class: 20080415094641.265 TS_ENDT {{NNEXRAD, ".*"},{NONE, "SIG=317e29fab15f5941ad5c971e7cc36a3d"} } Apr 15 10:46:41 bigbird idd.unidata.ucar.edu[10433] NOTE: Upstream LDM-6 on idd.unidata.ucar.edu is willing to be an alternate feeder Apr 15 10:46:44 bigbird climate.geog.udel.edu(feed)[10720] NOTE: feed or notify failure; HEREIS: RPC: Unable to send; errno = Broken pipe Apr 15 10:46:44 bigbird rpc.ldmd[10410] NOTE: child 10720 exited with status 7 Apr 15 10:47:40 bigbird idd.unidata.ucar.edu[10417] ERROR: Disconnecting due to LDM failure; Upstream LDM died Apr 15 10:47:40 bigbird idd.unidata.ucar.edu[10417] NOTE: LDM-6 desired product-class: 20080415094740.308 TS_ENDT {{CONDUIT, "[27]$"},{NONE, "SIG=f32c53cb27b778578610fa9ed67ee2d 5"}} The problems with upstream LDM-s and the inability to convert hostnames into IP addresses indicate a severe network problem. Regards, Steve Emmerson Ticket Details =================== Ticket ID: KXZ-978314 Department: Support LDM Priority: Normal Status: Closed