SMB Version 1 Protocol was giving performance issues as it was using an ineffective way of networking resources. To reduce the networking issue, the improvised version SMB2 was introduced. Microsoft then introduced version 2 to improve the incorrect usage of networking resources.
This Version also has a pipeline mechanism that sends an additional service request before the response to a previous request is arrived. This mechanism has improved the performance level, which was lagging in the previous SMB 1.
This helps store larger file data and communicate the large files over the network in less time. Later SMB3. It was introduced to improve the encryption level end to end. SMB 3. CIFS is generally used in larger firms where many people work on huge or larger data needed by the clients or employers in the firm. We need a set of message packets for transferring to determine a version of the protocol, which is called a dialect.
SMB contains two levels of security checks. Guest anonymous means access to a shared network folder without authentication. In this case, Microsoft recommends changing the settings on a remote computer or NAS device that hosts the network folders. It is advisable to switch the network share to the SMBv3 mode. Or configure access with authentication if only the SMBv2 protocol is supported by the device.
This is the most correct and safest way to fix the problem. Depending on the device on which network folders are stored, you must disable guest access on them:. There is another way — you can change the settings on your Windows 10 computer to allow access to shared network folders under the guest account. This method should be used only as a temporary workaround!!! To enable access under the guest account from your computer, you need to use the Group Policy Editor gpedit.
Find and enable the policy Enable insecure guest logons. In Windows 10 Home, which does not have a local GPO editor , you can make a similar change through the registry editor with the command:.
Another possible problem when accessing a network folder from Windows 10 is server-side support of the SMBv1 protocol only. Since the SMBv1 client is disabled by default in Windows 10 and newer, when you try to open the shared folder, you may get an error:. Quick links. Windows users cannot use SMB file service to access? Solution: 1. Reason 2: When filling in user information, the window always prompts "The user name or password is incorrect".
Solution: The user's password in the mapped drive has been changed. Reason 5: Windows prompts that multiple users are not allowed to access when using SMB service to access. Disconnect the SMB network drive of Windows. Solution: There is an error in the configuration file of the Samba file service, please contact our tech team to check it remotely.
What other extra configuration am I missing to let guest account credential flow through successfully? The setting to enable insecure logons was still set to yes 1 but when checking the registry I noticed it was set to 0;.
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