Changed Status from New to Confirmed This seems to be affecting many users of JasperReports Server 5.5.0.The JasperReports Server web interface makes a request to the rest_v2 service to obtain the options for the report to be scheduled, but is presented with a 404 instead of a valid JSON response.Reports without any parameters can be scheduled without issue. Attempting to schedule a report with parameters fails, with the Parameters tab remaining greyed out and disabled.Attempting to edit an existing scheduled job results in an active Parameters tab, but there are no parameters shown.There is a similar issue report here: http://community.jaspersoft.com/jasperreports-server/issues/3371There are several reports of this in the Answers section of the community site:http://community.jaspersoft.com/questions/820428/jasperserver-cp-550-input-parameters-are-disabled-when-schedulinghttp://community.jaspersoft.com/questions/820354/restv2reports-not-wokinghttp://community.jaspersoft.com/questions/819087/v2options-service-restservices