Geoserver WFS-T insert no response. bug?

I use Geoserver + Openlayers and want to add and save some new Points via WFS-T. I created insert transaction (correct) and sent it, but no response (include errors) was returned. In console was only:

01 dec 17:34:16 INFO [geoserver.wfs] - Request: getServiceInfo

I tried to execute demo insert transaction but had same result. what am I doing wrong? Geoserver 2.5.3, Tomcat 7