Event ID - 16401

Event Id16401
SourceMicrosoft-Windows-Bits-Client
DescriptionBITS could not add files to %1 job. The file count for %1 job (%2) has exceeded the per-job file limit (%3) specified through Group Policy. To correct the problem, increase the computer’s per-job file limit Group Policy settings and restart the BITS service.
Event Information According to Microsoft :

Cause :

This event is logged when BITS could not add files to job.

Resolution :

Modify the per-user job limit Group Policy setting

To resolve this issue, do the following:
  • Modify the Maximum number BITS jobs for each user Group Policy setting to increase the value for the maximum ranges per file that a BITS jobs can contain. By default, BITS limits the total number of jobs that can be created by a user to 200 jobs.
  • Ensure that the update to Group Policy is applied.
Modify the "Maximum number of BITS jobs for each user" Group Policy setting

To change Group Policy settings for a domain or an organizational unit (OU), you must be logged on as a member of the Domain Admins, Enterprise Admins , or the Group Policy Creator Owners group, or have been delegated the appropriate control over Group Policy.

To modify the Maximum number of BITS jobs for each user Group Policy setting:
  1. Do one of the following:

    • To edit a domain-based policy, start the GPMC. To start the GPMC, click Start , point to Administrative Tools , and then click Group Policy Management .
    • To edit a local policy, start Local Group Policy Editor. To start Local Group Policy Editor, click Start , and in the Start Search box, type gpedit.msc . In the left pane, under Computer Configuration , expand Administrative Templates , expand Network , and then click Background Intelligent Transfer Service (BITS) . Then skip to step 5.

  2. In the left pane, locate the OU that you want to edit.
  3. To modify an existing Group Policy object (GPO) for the OU, expand the OU, expand Group Policy Objects , right-click the GPO, and then click Edit .
  4. In the left pane, under Computer Configuration , expand Policies , expand Administrative Templates , expand Network , and then click Background Intelligent Transfer Service (BITS) .
  5. In the right pane, double-click Maximum number of BITS job for this computer .
  6. On the Settings tab, in Maximum number of BITS jobs for this computer , reduce the value as needed.
  7. Click OK .
  8. Close the GPMC.
Ensure that the update to Group Policy is applied

To perform this procedure, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.

To ensure that the update to Group Policy is applied:
  1. Open an elevated command prompt. To open an elevated command prompt, click Start , right-click Command Prompt , and then click Run as Administrator .
  2. Type gpupdate /force , and then press ENTER.
After you ensure that the update to Group Policy is applied, retry the BITS job, and then verify that there are no errors in the event logs.

For more information about configuring Group Policy settings by using the GPMC, see the GPMC Help in the Windows Server 2008 Technical Library.

Verify :

To view jobs in the job queue:
  • From an elevated command prompt, type bitsadmin /list /allusers
Reference LinksEvent ID 16401 from Source Microsoft-Windows-Bits-Client

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