Hi Andy, eliminating the tpc.key from the path query to the source on open seems to have worked for me, at least locally to my instance of xrootd. However, to be clear: should NONE of the tpc.* appear? For instance, for this path [log in to unmask]&tpc.str=1&tpc.dlg=fndcatemp2.fnal.gov:1094&tpc.tpr=root&tpc.spr=root&[log in to unmask]&org.dcache.uuid=f310df5f-b765-4d34-87bf-7ed111b3aeae I should also be removing tpc.str, tpc.dlg, tpc.tpr and tpc.spr from the query? Their presence doesn't seem to be breaking anything, but I am using (still) a 4.9.0 server. Thanks, Al ________________________________________________ Albert L. Rossi Application Developer & Systems Analyst III Scientific Computing Division, Data Movement Development FCC 229A Mail Station 369 (FCC 2W) Fermi National Accelerator Laboratory Batavia, IL 60510 (630) 840-3023 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1