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DMPDownloader is the Configuration Manager Service Connection Point component that synchronizes update metadata and downloads in-console update packages—not a tool for downloading client memory dumps. To troubleshoot it, identify whether the failure is in synchronization, applicability, payload download, or later site processing, then correlate the relevant state message with the package GUID, log entries, and files on disk. A state message is a milestone, not proof that an update is ready to install.
What DMPDownloader does
In Configuration Manager current branch, DMPDownloader runs as part of the Service Connection Point (SCP) Updates and Servicing workflow. It has two connected jobs:
- Synchronize update metadata: check for updates, download and validate the manifest, and pass update metadata into the site’s servicing pipeline.
- Download update content: identify applicable package GUIDs, retrieve the Easy Setup payload and required redistributables, validate content, and forward package metadata for further processing.
In online mode, investigate outbound access, proxy, TLS, manifest and payload retrieval. In offline mode, include the Service Connection Tool’s connect/import workflow and its log. Exact behavior and log wording can vary with Configuration Manager build; record the site version before comparing a state-message number to a reference.
Where to see progress
- Administration > Cloud Services > Updates and Servicing: available updates and their download or installation state.
- Monitoring > Overview > Site Servicing > Update packages: later replication, prerequisite-check, installation, and post-installation progress.
The console identifies the broad stage. Logs and artifacts explain why it stopped.
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State messages are not package states
State messages are compact component progress indicators. Status messages provide broader operational information. Neither should be read in isolation: a start message means a phase began, while a download milestone does not prove the package passed replication, prerequisite checks, or installation.
The following DMPDownloader milestones are documented in Microsoft’s Updates and Servicing troubleshooting guidance. Treat names and sequence as build-dependent and verify them against the log for your site.
| Message | Meaning | What to confirm next |
|---|---|---|
0 |
START_PROCESS: synchronization begins. |
DMPDownloader starts and records the operation. |
2 |
START_VERIFY_MANIFESTFILE_TRUSTED: manifest trust verification is about to begin. |
The manifest exists and verification proceeds. |
3 |
VERIFIED_MANIFEST: manifest validation succeeded. |
Processing continues to metadata handling. |
4 |
MANIFEST_DOWNLOADED: manifest handling completed and metadata is forwarded. |
Check the expected manifest or forwarding transition. |
6 |
A new applicable update/package was found. | Record and follow the package GUID. |
10 |
Payload downloaded. | Confirm payload files and validation; this is not installation success. |
11 |
Package metadata is written and redist processing is completed or advanced. | Check metadata and required redists. |
12 |
Update metadata is written or forwarded. | Check HMAN and inbox processing. |
The HTMD article, “SCCM CB DMPDownloader Troubleshooting with State Messages” (published August 5, 2024), also records messages such as 1, 5, 7, 8, 9, 13, 14, and 25. Its list is an empirical reference, not a complete, version-independent specification; use the installed build’s logs and Microsoft’s documented mappings as primary evidence.
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Do not confuse DMPDownloader progress message IDs with package state values. Package state values describe a package’s servicing status, not a DMPDownloader event.
| Package state | Value |
|---|---|
DOWNLOAD_IN_PROGRESS |
262145 |
DOWNLOAD_SUCCESS |
262146 |
DOWNLOAD_FAILED |
327679 |
APPLICABILITY_CHECKING |
327681 |
APPLICABILITY_SUCCESS |
327682 |
APPLICABILITY_HIDE |
393213 |
APPLICABILITY_NA |
393214 |
APPLICABILITY_FAILED |
393215 |
Use the package GUID to correlate the console, DMPDownloader log, database state, Easy Setup Payload directory, and any forwarding activity. Microsoft documents these values and the servicing flow in its troubleshooting guide.
Logs to check
| Log or evidence | What it tells you | When to use it |
|---|---|---|
DMPDownloader.log |
Whether the SCP synchronized, found an update, downloaded or validated content, and staged or forwarded metadata. | First log for synchronization and download failures. |
ConfigMgrSetup.log |
Redist or setup-file retrieval, URL responses, and hash/signature validation. | Use when payload redists or setup files fail; see Microsoft’s missing-file troubleshooting. |
HMAN.log |
Whether Hierarchy Manager received and processed manifest or package metadata. | Use when DMPDownloader appears successful but update metadata or console state does not advance. |
| Service Connection Tool log | Offline SCP connect and import operations. | Use for offline servicing failures. |
CMUpdate.log |
Update installation service processing. | Use after content download, when the failure is in update processing or installation. |
| Windows Application event log | Servicing-process crashes and service failures. | Check when a process such as CMUpdate.exe crashes. |
Do not start with client software-update content logs such as CAS.log, ContentTransferManager.log, or DataTransferService.log. Those primarily concern content downloads to clients, not the SCP downloading Configuration Manager’s own servicing payload. See Microsoft’s separate software update deployment troubleshooting for that client workflow.
A practical troubleshooting workflow
- Record the context. Note site version/build, site code, SCP server, online or offline mode, package GUID, approximate incident time and time zone, console state, and whether one package or all operations are affected. The GUID is more reliable than a display name for tracing the workflow.
- Decide whether this is synchronization or download. If no update metadata appears, investigate manifest synchronization and applicability. If an update is visible and selected for download, trace the payload path. If it is already “Ready to Install,” DMPDownloader is no longer the primary focus; investigate replication, prerequisites, or installation.
- Read
DMPDownloader.logaround the incident time. Search forERROR,WARNING,Failed to download,Generating state message,Found a new available update,Download redist,Successfully download, the GUID, and manifest or payload filenames. Compare the last completed milestone with the transition expected next. - Verify the artifact, not just the log line. Confirm the manifest (for example,
ConfigMgr.Update.Manifest.cabor its processed equivalent), the GUID directory underEasySetupPayload, and required files underEasySetupPayload<PackageGuid>Redists. Check readability by the relevant service context, available disk space, and logged validation results. Microsoft’s missing-file guidance specifically calls for checking required Easy Setup Payload files. - For redist failures, read
ConfigMgrSetup.log. Follow the URL, HTTP response, proxy selection, hash validation, and signature validation. A successful HTTP response alone does not establish that the correct trusted file was obtained. - If download appears successful but the console is stale, follow forwarding. Check
HMAN.log, the expected connector/outbox and site-server inbox transitions, queued files, permissions, and service health. Compare timestamps to see whether DMPDownloader handed off work that HMAN has not processed. - Fix the cause before retrying. Correct outbound access, proxy or TLS configuration, trust, disk-space, permissions, or content problems as indicated. Then retry through the supported console workflow, or use the documented reset/offline procedure only when it fits the failure.
Troubleshoot by symptom
No updates appear
Start with synchronization, not payload folders. Check whether DMPDownloader.log begins the operation and reaches manifest download and verification. Confirm the SCP can reach the failing host using the network path and proxy configuration the component actually uses. If the manifest is processed but a specific update is absent, check HMAN.log and applicability: a package may be hidden or not applicable to the site’s version/branch.
Manifest download or trust verification fails
Look for URL, connection, CAB, and signature errors in DMPDownloader.log. Confirm DNS and outbound HTTPS from the SCP, proxy settings, TLS 1.2 support, and that the URL in the log is reachable. A browser test under an administrator account is not conclusive: it may use different proxy credentials, certificate stores, or TLS behavior. Microsoft’s guidance for SCP update-download failures covers internet access, TLS, proxy, URL, and network-trace checks.
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Manifest downloads but is not processed
Confirm the downloaded file is a valid signed CAB and that the expected rename or move into the connector/inbox path occurs. Check the subsequent DMPDownloader transition and HMAN.log. Include whether the site is online or offline connected; offline imports depend on the Service Connection Tool workflow rather than direct online retrieval.
An update is missing, hidden, or not applicable
Follow the GUID and applicability result. APPLICABILITY_HIDE or APPLICABILITY_NA is not the same as a failed payload download. Review HMAN.log, package state, and the site’s current version and prerequisites. A package that is not applicable may not be presented as an installable update.
Package remains in download progress or fails
Check the GUID-specific entries in DMPDownloader.log, the payload directory, redists, URL responses, validation, disk space, and possible security-software interference. If only one package fails, package-specific content or redist retrieval is more likely; if all packages fail, investigate common SCP connectivity, proxy, TLS, certificate trust, or servicing health first.
Redists or setup files fail
Use ConfigMgrSetup.log to distinguish a network response problem from a content-integrity failure. Follow the logged URL and response, then hash/signature validation. Do not infer validity from file existence or HTTP success alone.
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DMPDownloader succeeds but the console does not change
Switch from download diagnosis to handoff and hierarchy processing. Check HMAN.log, file movement through the appropriate inbox path, backlog, permissions, and the package GUID. For a remote SCP, files pass through management-point outboxes before reaching the site server; a co-located SCP has a different forwarding path. The expected route depends on the site architecture.
Offline import fails
Use the Service Connection Tool log and verify the connect/import sequence and imported artifacts. Do not troubleshoot offline servicing as if the SCP were directly downloading from the internet.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Useful diagnostic commands
These are optional checks, not Microsoft-prescribed fixes. Substitute the hostname and paths from your own logs and installation.
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Get-Service SMS_EXECUTIVE, SMS_SITE_COMPONENT_MANAGER -ErrorAction SilentlyContinue
# Test TCP reachability to the actual host from the failing log entry
Test-NetConnection <hostname> -Port 443
# Review free space on local file-system volumes
Get-PSDrive -PSProvider FileSystem
# Find package-specific entries (adjust drive/path and GUID)
Select-String `
-Path "C:Program FilesMicrosoft Configuration ManagerLogsDMPDownloader.log" `
-Pattern "<PackageGuid>"
# Optional local signature inspection; not a replacement for ConfigMgr validation
Get-AuthenticodeSignature "C:PathToFile"A successful TCP connection does not prove proxy authentication, TLS negotiation, HTTP response, or signature validation will succeed. Verify where the relevant services run in your architecture; do not assume all listed services are hosted on the SCP.
Recovery without making the problem worse
- Correct the demonstrated proxy, TLS, outbound access, trust, disk-space, permissions, or security-software issue, then retry using the console workflow.
- For a documented servicing-state problem, use
CMUpdateReset.exeonly when Microsoft’s reset procedure applies; it is not a generic first response to a failed connection. - For offline servicing, repeat the appropriate Service Connection Tool connect/import workflow after correcting the underlying issue.
- If escalation is needed, provide the site build, mode, SCP placement, package GUID, incident timestamps, relevant logs, and evidence of the file/inbox transition.
Do not manually delete EasySetupPayload or CMUStaging as an initial cleanup step. Microsoft specifically cautions against manually cleaning servicing folders during investigation. Capture logs and identify the failure first; use documented recovery procedures rather than deleting state that may be needed to diagnose or complete servicing.
Keep the stages separate
DMPDownloader covers synchronization and download work. A downloaded payload is not yet a ready-to-install update. Replication, prerequisite checking, installation, and post-installation have distinct transitions and evidence. When DMPDownloader’s artifact and handoff are confirmed, move to the log and stage responsible for the next transition instead of repeatedly restarting the downloader.
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