Why are 50% of devices non-compliant after replacing Cylance with CrowdStrike, showing SyncML (500) error 2016345612?

Question

"We are experiencing 50% non-compliant devices after removing the Cylance endpoint solution and rolling out CrowdStrike. Many affected devices display the SyncML (500) error: '2016345612 - The recipient encountered an unexpected condition which prevented it from fulfilling the request.' Does anyone have insights or troubleshooting steps for this issue?

Has anyone encountered this issue before, and what troubleshooting steps would you recommend?

Answer 1

@Mona Patel Thanks for posting in our Q&A.

From the screenshot you provided, "Microsoft Defender Antimalware security intelligence up-to-date" shows error. Please refer to the following article to check if you can update it:

https://learn.microsoft.com/en-us/defender-endpoint/troubleshoot-security-intelligence-not-updated

If there is anything update, feel free to let us know.

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