adlsdk-status-auth-pending 4 is not a network or credential problemāit is a synchronization paradox. The SDK is waiting for a callback to say "done", but the callback already tried to say "done" to a listener that had given up and left. This exposes a subtle flaw in the SDKās cancellation propagation, making Code 4 the most "interesting" and deceptive authentication status in the ADL stack.
Next Step: Patch the SDK wrapper to implement CompletableFuture chaining with explicit cancellation handlers.
Report generated by: Security & Observability Team
Status: Awaiting vendor confirmation on SDK-4471 (callback cleanup regression)
In a production stream processing job using ADL Gen2, we observed the following log sequence:
10:32:01.123 [main] INFO - Initiating token refresh for tenant "adls-tenant-4"
10:32:01.456 [netty-io-2] DEBUG - Received OAuth2 response (cached token expired)
10:32:01.457 [netty-io-2] DEBUG - Setting AUTH_PENDING state: 4
10:32:01.458 [main] WARN - Thread blocked: adlsdk-status-auth-pending 4
10:33:01.459 [main] ERROR - Timeout after 60s - no callback invoked.
Key Insight: The network layer succeeded (the token was actually fetched). The failure occurred when the callback tried to notify() a CountDownLatch that had already been destroyed due to a premature timeout handler in the callerās code.
In SDK logging and error handling, numbers usually correspond to specific internal enums or error codes. While specific SDK versions vary, the number 4 in this context generally aligns with a state iteration or a specific hang condition in the authentication loop.
In many versions of the Azure Identity SDK and ADLS SDK, the authentication process follows these states:
When you see status-auth-pending 4, it usually means the polling loop is stuck or waiting for user input, specifically:
The Culprit: Mixed asynchronous programming models. The application used Future.get(timeout) on the SDKās CompletableFuture, but the SDK internally used a separate callback executor. When the future timed out, the main thread: adlsdk-status-auth-pending 4
The callback later fired (e.g., 50ms after the timeout), attempted to release a latch on the now-invalid state object, and the SDK erroneously transitioned to Status 4 (waiting for a signal that will never come).
The authenticated identity needs at least one of these at the storage account, resource group, or subscription level:
Wait 5ā10 minutes after role assignment before retrying ā Azure RBAC propagation can cause
AUTH_PENDINGif checked too soon.
To resolve this issue, follow these steps in order of likelihood:
Step 1: Verify Internet Connectivity
Ensure the machine has a stable internet connection. Open a web browser and attempt to navigate to https://accounts.autodesk.com. If this fails, the issue is general connectivity, not specifically Autodesk.
Step 2: Configure Firewall/Proxy Exceptions Autodesk requires specific domains and ports to be whitelisted. Ensure the following are allowed through the firewall/proxy:
Step 3: Clear the Licensing Cache This is the most effective fix for client-side corruption.
Step 4: Repair the Licensing Service If the cache clear fails, the installation of the Licensing Service itself might be corrupted. adlsdk-status-auth-pending 4 is not a network or credential
Subject: Persistent Hanging State in Asynchronous Authentication Pipeline Severity: Medium (Potential for cascading latency) Affected Component: ADL SDK (Authentication & Licensing Middleware)
The key to resolving "adlsdk-status-auth-pending 4" lies in accurately understanding the context and ensuring that your application's authentication and authorization setup aligns with the requirements of the service you're interacting with. If you can provide more details or specific technology stacks you're working with, a more tailored review could be offered.
The error code ADLSDK_STATUS_AUTH_PENDING 4 typically occurs when an Autodesk product (like AutoCAD or AutoCAD LT) is launched and fails because the product has not been properly registered with the local licensing service. Primary Cause
The local Autodesk Desktop Licensing Service (ADLS) does not recognize the installed software because the registration information is missing or corrupted. Common Solutions
According to Autodesk Support and community experts, you can resolve this by following these steps:
The error ADLSDK_STATUS_AUTH_PENDING 4 indicates that your Autodesk software has not yet been registered with the local licensing service. This typically happens when the software is installed but the background licensing component cannot identify the product to verify its activation status. Primary Solutions for Error Code 4
To resolve this issue, you must ensure the product is correctly registered and the licensing service is up to date. 1. Manually Register the Software
If the initial installation failed to register the product, you may need to do so manually using the Autodesk Helper Tool. Report generated by: Security & Observability Team Status:
Locate the Helper Tool: Usually found in C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing\Current\helper\.
Run via Command Prompt: Open an elevated Command Prompt (Run as Administrator) and use the AdskLicensingInstHelper.exe to register the product key and version.
Official Guide: Refer to the Autodesk Manual Registration Guide for exact command strings based on your software version. 2. Update Autodesk Licensing Components
Outdated licensing services are the most common cause of "Auth Pending" errors.
Autodesk Desktop Licensing Service (ADLS): Download the latest version from the Autodesk Licensing Service Update page.
Autodesk Identity Manager (2024+ products): Ensure you have the latest Identity Manager Update.
AdSSO (2020ā2023 products): If using older versions, update the Single Sign On Component. 3. Perform a Clean Reinstall of the Licensing Service If the service is corrupted, a simple update may not work.
Navigate to C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing. Right-click uninstall.exe and select Run as Administrator.
Wait for the folder to empty, then download and reinstall the service from the Autodesk support site. Common Secondary Causes