Help

Start a discussion
UNSOLVED

markomard

updated

2 months ago

M

markomard

1 Rookie

•

7 Posts

•

25 Points

0

143

September 14th, 2026 10:28

DCU errors

Hi, DCU 5.7.1 running a scheduled tasks as SYSTEM on all our desktops, one is updating bios and other one drivers. Some work, most report errors:

 

Cannot get the catalog..

[2026-09-11 01.00.09] : The computer manufacturer is 'Dell' 
[2026-09-11 01.00.09] : Checking for updates... 
[2026-09-11 01.00.10] : Checking for application component updates... 
[2026-09-11 01.00.15] : Determining available updates... 
[2026-09-11 01.00.15] : The scan result is DOWNLOAD_ERROR 
[2026-09-11 01.00.15] : DEFAULT_SYSTEM_CATALOG_DOWNLOAD_FAILED is flagged in the scan results 
[2026-09-11 01.00.15] : NETWORK_ERROR is flagged in the scan results 
[2026-09-11 01.00.15] : The service provided this message 'Catalog download failed [https://downloads.dell.com/catalog/CatalogIndexPC.cab]' 
[2026-09-11 01.00.15] : The service provided this message 'Catalog download failed [https://downloads.dell.com/FOLDER14993437M/1/Precision_0A58.cab]' 
[2026-09-11 01.00.16] : Execution completed. 
[2026-09-11 01.00.16] : The program exited with return code: 500 
[2026-09-11 01.00.16] : State monitoring instance total elapsed time = 00:00:11.0177353, Execution time = 9mS, Overhead = 0,0868145743163752% 
[2026-09-11 01.00.16] : State monitoring disposed for application domain dcu-cli.exe 

 

Gets the updates needed, seems to donwload (just guessing from the log) but still fails

[2026-09-04 01.00.07] : The computer manufacturer is 'Dell' 
[2026-09-04 01.00.07] : Checking for updates... 
[2026-09-04 01.00.07] : Checking for application component updates... 
[2026-09-04 01.00.10] : Temporary closing synchronized view for the original memory map space in SSM 
[2026-09-04 01.00.10] : Re-Initializing synchronized view for the original memory map space in SSM 
[2026-09-04 01.00.10] : Scanning system devices... 
[2026-09-04 01.00.16] : Determining available updates... 
[2026-09-04 01.01.07] : The scan result is VALID_RESULT 
[2026-09-04 01.01.07] : PRECEDENCE_DOWNLOAD_FALIURE is flagged in the scan results 
[2026-09-04 01.01.07] : SYSTEMCONFIG_COMPONENTS_NOTFOUND is flagged in the scan results 
[2026-09-04 01.01.07] : The service provided this message 'Failed to download precedence catalog: https://dellupdater.dell.com/non_du/ClientService/Catalog/Platform/PrecedenceCatalog.cab' 
[2026-09-04 01.01.07] : 2 updates were selected. Download Size: 500,6 MB 
[2026-09-04 01.01.07] : [1] 5JH88, Dell Command | Monitor, 10.13.2.56 
[2026-09-04 01.01.07] : [2] VK808, Intel Graphics Driver, 32.0.101.7088 
[2026-09-04 01.01.07] : Scanning system devices... 
[2026-09-04 01.01.08] : Downloading updates (0 of 0), 0 bytes of 500,6 MB transferred (0,00%)...  
[2026-09-04 01.01.13] : Temporary closing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.13] : Re-Initializing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.14] : Temporary closing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.14] : Re-Initializing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.15] : Temporary closing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.15] : Re-Initializing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.16] : Temporary closing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.16] : Re-Initializing synchronized view for the original memory map space in SSM 
[2026-09-04 01.01.17] : Downloaded updates (0 of 0)., 500,6 MB of 500,6 MB transferred (100,00%)...  
[2026-09-04 01.01.17] : Finished installing the updates. 
[2026-09-04 01.01.17] : 2 of 2 update(s) failed to install. 
[2026-09-04 01.01.17] : [1] 5JH88, Dell Command | Monitor, 10.13.2.56 
[2026-09-04 01.01.17] : [2] VK808, Intel Graphics Driver, 32.0.101.7088 
[2026-09-04 01.01.17] : A problem occurred attempting to connect to your network. Please check your network settings and try again. 
[2026-09-04 01.01.17] : Execution completed. 
[2026-09-04 01.01.17] : The program exited with return code: 1002 
[2026-09-04 01.01.17] : State monitoring instance total elapsed time = 00:01:12.8693426, Execution time = 91mS, Overhead = 0,125769077543455% 
[2026-09-04 01.01.17] : State monitoring disposed for application domain dcu-cli.exe 

 

If I run the tasks manually they run ok.

  • SG

    Sharan G

    2 Intern

    •

    98 Posts

    •

    309 Points

    0

    0

    Posted September 14th, 2026 15:38

    @markomard

     

    Looking at the logs, this does not appear to be a typical update package failure. The key clues are:

    • DEFAULT_SYSTEM_CATALOG_DOWNLOAD_FAILED
    • NETWORK_ERROR
    • Catalog download failed [https://downloads.dell.com/catalog/CatalogIndexPC.cab]
    • Catalog download failed [https://downloads.dell.com/FOLDER14993437M/1/Precision_0A58.cab]
    • Failed to download precedence catalog
    • Updates show as downloaded (500.6 MB transferred (100%)) but installation immediately reports a network-related error.

    What is interesting is that on 09/04 DCU was able to identify available updates and download them, but failed when trying to retrieve the Precedence Catalog. On 09/11 it could not even retrieve the primary catalog files, which suggests the issue may be related to how DCU is reaching Dell's catalog servers rather than the individual update packages themselves.

    A few additional checks that I don't see mentioned yet:

    • Open both URLs shown in the log (CatalogIndexPC.cab and the model-specific catalog CAB) directly in a web browser on the affected system. If the browser cannot download them, there may be a DNS, proxy, SSL inspection, firewall, or content-filtering issue.
    • If this is a corporate network, temporarily test from a different network (mobile hotspot/home connection). DCU can be blocked by web filtering even when normal internet access works.

    • Check whether a proxy is configured:

      netsh winhttp show proxy

      DCU uses system networking components and can behave differently than a web browser when proxy settings are involved.

    • Verify that TLS 1.2 is enabled in Windows Internet Options. Some Dell services may fail if older TLS settings are being forced by policy.
    • Review Windows Event Viewer under Applications and Services Logs > Microsoft > Windows > CAPI2 and Schannel around the time of the failure for certificate validation errors.
    • Clear the DCU cache completely:
      • Stop the Dell Client Management Service
      • Rename or remove:
        • C:\ProgramData\Dell\UpdateService
        • C:\ProgramData\Dell\CommandUpdate
      • Restart the service and perform a new scan.
    • Try downloading and installing one of the failed packages manually from Dell Support. If the manual installer also reports a network or certificate error, that would further point to a connectivity/security-layer issue rather than DCU itself.
    • If the system uses endpoint security software (CrowdStrike, Defender Application Control, Zscaler, Cisco Umbrella, etc.), temporarily disable or exclude DCU components and retest.

    One additional observation: the log shows "2 updates selected", then immediately "Downloading updates (0 of 0)". That is not normal behavior and may indicate corruption in the local DCU metadata database. A complete uninstall of Dell Command Update, removal of remaining ProgramData folders, reboot, and installation of the latest DCU release would be worth testing.

     

  • M

    markomard

    1 Rookie

    •

    7 Posts

    •

    25 Points

    6

    1

    Posted September 23rd, 2026 04:59

    @Sharan G​ 

    It was dcu fault, 5.7.2 seems to have fixed this.

Dell Support Resources

Latest Solutions

View More