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Event ID 30910: The client supports SMB Direct (RDMA) and SMB Encryption is in use

Windows Event ID Lookup: What Windows event IDs mean: 4625, 4624, 4740, 6008, 41, 7045, 1102 and 3,000 more, with Windows' own message text, the fields and what to check.

Look up a Windows event ID from Event Viewer, a SIEM alert or a log export: what it means, the fields it records, and what to check. Many IDs are used by more than one source (event 41 is both a Kernel-Power crash and a boot error), so every definition is shown, the one people usually mean first. The message text is Windows' own, read from the event providers of Windows 10.0.26200.0, 2026-10-28; the notes are ours, based on Microsoft's security auditing reference.

Try: 4625, 4624, 4740, 6008, 41, 1074, 7045, 1102, 4104, 1149

The client supports SMB Direct (RDMA) and SMB Encryption is in use.

Event 30910
SMBClient
SMBClient/Connectivity log
Information
Message and fields (as Event Viewer shows them) 
The client supports SMB Direct (RDMA) and SMB Encryption is in use.

Share name: …

Guidance:
For optimal SMB Direct performance, you can disable SMB Encryption on the server for shares accessed by this client. This configuration is less secure and you should only consider this configuration on trustworthy private networks with strict access control.