I cannot connect my SMB shares on Windows 10. I get the same error on 2 machines, both fresh installs.

Windows 10 Error Dialogue

Android and Windows 7 can connect just fine. Workgroup is correct. Sambauser has a username and password set on the server.

I tried:

At random the network drive connects. I can browse my files for 10 seconds or so. Then it drops dead again.


1 Answer 1


On the Windows PC, change HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\LmCompatibilityLevel to 4.

Network security: LAN Manager authentication level is usually set to "Send LM & NTLM - use NTLMv2 session security if negotiated" by Group policies for backup compatibility with older clients.

Changing LmCompatibilityLevel to 4 sets it to "Send NTLMv2 response only".


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