Hello all, The error message "invalid exchange" didn't give people hints to investigate. "invalid exchange" != "grid proxy... expired" I'd suggest to improve a good error message from XRootd side. Thank you so much. Qiulan -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1734#issuecomment-1179011308 You are receiving this because you are subscribed to this thread. Message ID: <[log in to unmask]> ######################################################################## 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