Both SONAR and IPS definition are not updated to the clients

Hi, 

One day when I checked the definition update status for the clients, I found only Virus Definition are up-to-dated. Both SONAR and IPS definition are not updated. It freezed in one day. Checked the LU server the download and distribution are no problem. Try perform manual update from LU server can't fix the problem. But download the JDB then feed to SEPM is working that is my workaround I can do. 

Appreciate if anyone can give me some hint to address the root cause or guidance. Thanks!