GetDirectoryList_HTTP Error sending DAV request. HTTP code 401, status ‘Unauthorized’

ISSUE

All machines fail to download with the following errors in DataTransferService.log:

GetDirectoryList_HTTP Error sending DAV request. HTTP code 401, status 'Unauthorized'

LOGS

DataTransferService.log –

Job {0BB4BD48-DEC8-4153-BD2A-5062A8725579} impersonating Network Access Account.
Successfully queued event on HTTP/HTTPS failure for server 'KULPSYBKP001.intlsos.com'.
GetDirectoryList_HTTP Error sending DAV request. HTTP code 401, status 'Unauthorized'
GetDirectoryList_HTTP GetDirectoryList_HTTP('https://contonso.test.com:443/CCMTOKENAUTH_SMS_DP_SMSPKG$/6cced099-2065-42fe-ac1b-001de8865708') failed with code 0x80070005.

IIS log –

PROPFIND /CCMTOKENAUTH_SMS_DP_SMSPKG$/6cced099-2065-42fe-ac1b-001de8865708 - 443 - 192.168.33.52 SMS+CCM+5.0 - 401 1 0 1589 1

IIS Freb log –

Note: How to enable IIS Freb logging – https://learn.microsoft.com/en-us/iis/troubleshoot/using-failed-request-tracing/troubleshooting-failed-requests-using-tracing-in-iis#enable-failed-request-tracing

Common possibilities

There could be various possibilities:

• Distribution point prerequisites not met: Refer to https://learn.microsoft.com/en-us/mem/configmgr/core/plan-design/configs/site-and-site-system-prerequisites#distribution-point

• Authentication settings for the site in IIS: Windows Authentication not enabled

• Security settings for the site folder in IIS: Local Users group permissions missing

• Antivirus software blocking file access
• Security settings about C:\Windows\system32\inetsrv\smsfileisapi.dll: smsfileisapi.dll has permissions missing

ANALYSIS

In my case, all the above possibilities have been excluded. Therefore, I captured a ProcMon and found that HKLM\SOFTWARE\Microsoft\Sms has missing Read permission for local Users group.

SOLUTION

1. Add Users group into Sms node of HKLM\SOFTWARE\Microsoft\Sms
2. Grant Read permission to Users group
3. Restart IIS: IISReset

Distribution point upgrade fails with “Failed to install vcredist“

ISSUE

Distribution point upgrade fails with “Failed to install vcredist”

ERRORS

distmgr.log

Run command 'D:\SMS_DP$\sms\bin\vcredist_x64.exe /q /norestart /log "D:\SMS_DP$\sms\bin\vcredist.log"' to install VC redist
Retrying command 'D:\SMS_DP$\sms\bin\vcredist_x64.exe /q /norestart /log "D:\SMS_DP$\sms\bin\vcredist.log"' to install VC redist
Failed to install vcredist on DP DPCONTOSO.TEST.LOCAL, ErrorCode - 8, Hresult - 0x0
~Will try again after 20 minutes ...

SOLUTION

This issue can happen after you upgrade SCCM to a higher version. Most of the time, it is caused by broken site system installation account.

To solve the issue, just try with a new account with full administrator permission on the target distribution point server as site system installation account