I was running into a problem where uploading attachments to a ticket failed. Instead of getting a warning after waiting for the upload, the page would just refresh and the attachment would not be there. I thought updating the WebMaxFileUpload setting in Config Options: Framework -> Core::Web would solve the problem. It did not. I finally found this warning in the Apache error log file : ERROR: OTRS-CGI-99 Perl: 5.8.8 OS: linux Time: Tue Feb 23 13:46:31 2010 Message: Got a packet bigger than 'max_allowed_packet' bytes, SQL: 'INSERT INTO web_upload_cache (form_id, filename, content_type, content_size, content, create_time_unix, content_id) VALUES (?, ?, ?, ?, ?, ?, ?)' The final fix is that the max_allowed_packet in your MySQL my.cnf file must ALSO be set to whatever you want the max upload size to be. Here is my sample : max_allowed_packet = 16M Hopefully this tip will help someone else. I found several people asking this question with responses like "This has been answered many times before...." . Well, I never found an answer. Justin Noel http://www.calendee.com