https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15399 --- Comment #9 from alfre69 <alfre@ibdinternet.com> --- If you increase $max_record_size too much it breaks the Z39.50 server. A yaz-client search report this: Target has closed the association. Reason: protocolError, message: Incoming package too large -- You are receiving this mail because: You are watching all bug changes.