The distribution manager (distmgr) component of the SMS Executive service does not process incoming package notifications (.PKN files) in a timely fashion. This can occur when there are multiple site control file changes, which in turn trigger distribution point checks.
The main processing thread of distribution manager will show multiple entries resembling the following in the distmgr.log file:
11-07-2019 08:04:21.009 GetDPCRC - DP1.CONTOSO.COM
11-07-2019 08:04:22.226 Finished GetDPCRC - DP1.CONTOSO.COM
11-07-2019 08:42:21.211 GetDPCRC - DP2.CONTOSO.COM
11-07-2019 08:42:21.321 Finished GetDPCRC - DP2.CONTOSO.COM
Note these log entries will show the same thread ID, and they may be 30 minutes or more apart.
Update information for System Center Configuration Manager, version 1906
Microsoft Download Center
The following hotfix to resolve this problem is available for download from the Microsoft Download Center:
After you download this hotfix, see the following documentation for installation instructions:
To apply this hotfix, you must have System Center Configuration Manager, version 1906 and the following update rollup installed.
KB 4517869: Update rollup for System Center Configuration Manager current branch, version 1906
You don't have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any previously released hotfix.
The English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.