Microsoft Defender for Endpoint
TroubleshootingTroubleshoot Device Discovery Network Scans
In brief
The page’s FIPS reference, metadata, registration error text, and sign-in remediation wording were updated.
What Defender admins need to know
Administrators troubleshooting authenticated scanner registration can use the revised guidance; no action is required.
Summaries are generated from the documentation change itself.
Documentation change
View on Microsoft LearnThe comparison below shows only the changed extract. Use the full-page view for complete context.
ms.collection:
- m365-security
- tier1
ms.custom: admindeeplinkDEFENDER, msecd-doc-authoring-
10141016 ms.topic: how-to ms.date:06/16/07/03/2026 appliesto:- Microsoft Defender for Endpoint Plan 2
My scanner is configured but scans aren't running
As the authenticated scanner currently uses an encryption algorithm that isn't compliant with Federal Information Processing Standards (FIPS)Federal Information Processing Standards (FIPS), the scanner can't operate when an organization enforces the use of FIPS compliant algorithms.
To allow algorithms that aren't compliant with FIPS, set the following value in the registry for the devices where the scanner runs:
Registration error: insufficient permissions to add a new agent
Registration finished with an error: "It looks like you don't have sufficient permissions for adding a new agent. The required permission is 'Manage security settings in Defender'."
Press any key to exit.
To resolve this issue:issue, take one of the following actions:
- Ask your system administrator to assign you the required permissions.
Alternately, askAsk another relevant member to help you with the sign-in process by providing them with the sign-in code and link.
Registration process fails using provided link in the command line in registration process
@@ -9,9 +9,9 @@ ms.localizationpriority: medium ms.collection: - m365-security - tier1-ms.custom: admindeeplinkDEFENDER, msecd-doc-authoring-1014+ms.custom: admindeeplinkDEFENDER, msecd-doc-authoring-1016 ms.topic: how-to-ms.date: 06/16/2026+ms.date: 07/03/2026 appliesto: - Microsoft Defender for Endpoint Plan 2 @@ -53,7 +53,7 @@ Validate that the scanner is running properly. Then go to the scan definition (t ## My scanner is configured but scans aren't running -As the authenticated scanner currently uses an encryption algorithm that isn't compliant with [Federal Information Processing Standards (FIPS)](/windows/security/threat-protection/security-policy-settings/system-cryptography-use-fips-compliant-algorithms-for-encryption-hashing-and-signing/), the scanner can't operate when an organization enforces the use of FIPS compliant algorithms.+As the authenticated scanner currently uses an encryption algorithm that isn't compliant with [Federal Information Processing Standards (FIPS)](/previous-versions/windows/it-pro/windows-10/security/threat-protection/security-policy-settings/system-cryptography-use-fips-compliant-algorithms-for-encryption-hashing-and-signing), the scanner can't operate when an organization enforces the use of FIPS compliant algorithms. To allow algorithms that aren't compliant with FIPS, set the following value in the registry for the devices where the scanner runs: @@ -64,14 +64,12 @@ FIPS compliant algorithms are only used in relation to departments and agencies <a name="required-defender-vulnerability-management-user-permission"></a> ## Registration error: insufficient permissions to add a new agent -Registration finished with an error: "It looks like you don't have sufficient permissions for adding a new agent. The required permission is 'Manage security settings in Defender'."+Registration finished with an error: "It looks like you don't have sufficient permissions for adding a new agent. The required permission is 'Manage security settings in Defender'." Press any key to exit. -Press any key to exit.--To resolve this issue:+To resolve this issue, take one of the following actions: - Ask your system administrator to assign you the required permissions.-- Alternately, ask another relevant member to help you with the sign-in process by providing them with the sign-in code and link.+- Ask another relevant member to help you with the sign-in process by providing them with the sign-in code and link. ## Registration process fails using provided link in the command line in registration process