Hello,
\nI’ve got a weird problem on a Windows Server 2019 file server:<\/p>\n

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Local users can open SMB share located in Windows server.<\/p>\n

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Domain users get an error (NTFS and sharing permissions= Everyone):
\n\\172.16. is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.<\/p>\n

The request is not supported.<\/p>\n

Remote Desktop works fine for both accounts (Domain users and local users)<\/p>\n

Ping to domain works. Telnet 445 works.<\/p>\n

Please your help.
\n

\"FB_IMG_1752867841306\"
<\/use><\/svg>FB_IMG_1752867841306<\/span>811×568 57.5 KB<\/span><\/use><\/svg><\/div><\/a><\/div>
\n
\"FB_IMG_1752867836123\"
<\/use><\/svg>FB_IMG_1752867836123<\/span>834×270 22.9 KB<\/span><\/use><\/svg><\/div><\/a><\/div><\/p>","upvoteCount":4,"answerCount":10,"datePublished":"2025-07-18T20:21:33.995Z","author":{"@type":"Person","name":"spiceuser-4nrt","url":"https://community.spiceworks.com/u/spiceuser-4nrt"},"suggestedAnswer":[{"@type":"Answer","text":"

Hello,
\nI’ve got a weird problem on a Windows Server 2019 file server:<\/p>\n

Local users can open SMB share located in Windows server.<\/p>\n

Domain users get an error (NTFS and sharing permissions= Everyone):
\n\\172.16. is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.<\/p>\n

The request is not supported.<\/p>\n

Remote Desktop works fine for both accounts (Domain users and local users)<\/p>\n

Ping to domain works. Telnet 445 works.<\/p>\n

Please your help.
\n

\"FB_IMG_1752867841306\"
<\/use><\/svg>FB_IMG_1752867841306<\/span>811×568 57.5 KB<\/span><\/use><\/svg><\/div><\/a><\/div>
\n
\"FB_IMG_1752867836123\"
<\/use><\/svg>FB_IMG_1752867836123<\/span>834×270 22.9 KB<\/span><\/use><\/svg><\/div><\/a><\/div><\/p>","upvoteCount":4,"datePublished":"2025-07-18T20:21:34.074Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/1","author":{"@type":"Person","name":"spiceuser-4nrt","url":"https://community.spiceworks.com/u/spiceuser-4nrt"}},{"@type":"Answer","text":"

Been there done that!!<\/p>\n

\n
\n\n learn.microsoft.com<\/a>\n <\/header>\n\n
\n
<\/div>\n\n

Control SMB signing behavior<\/a><\/h3>\n\n

How to disable SMB signing on third-party servers in Windows 11 and Windows Server.<\/p>\n\n\n <\/article>\n\n

\n \n \n <\/div>\n\n
<\/div>\n<\/aside>\n\n

And<\/p>\n

\n
\n\n learn.microsoft.com<\/a>\n <\/header>\n\n
\n
<\/div>\n\n

Enable insecure guest logons in SMB2 and SMB3 for Windows client and Windows...<\/a><\/h3>\n\n

This article describes how to enable guest logons policy in SMB2 and SMB3 for Windows client and Windows Server devices using Group Policy and PowerShell.<\/p>\n\n\n <\/article>\n\n

\n \n \n <\/div>\n\n
<\/div>\n<\/aside>\n","upvoteCount":5,"datePublished":"2025-07-18T20:23:39.315Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/2","author":{"@type":"Person","name":"agenglercain","url":"https://community.spiceworks.com/u/agenglercain"}},{"@type":"Answer","text":"

Just an FYI, I know you tried scrubbing your text of the full IP address, but it’s still visible in your first screenshot.<\/p>","upvoteCount":4,"datePublished":"2025-07-18T20:25:56.485Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/3","author":{"@type":"Person","name":"ode2joy","url":"https://community.spiceworks.com/u/ode2joy"}},{"@type":"Answer","text":"

\n
\n
<\/div>\n\"\" spiceuser-4nrt:<\/div>\n
\n

(NTFS and sharing permissions= Everyone)<\/p>\n<\/blockquote>\n<\/aside>\n

From a security perspective this is a bad idea.<\/p>\n

It seems like you may have SMB signing enabled on the server, but not on the client, check your GPO for signing enforcement.<\/p>","upvoteCount":2,"datePublished":"2025-07-18T20:40:06.506Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/4","author":{"@type":"Person","name":"Rod-IT","url":"https://community.spiceworks.com/u/Rod-IT"}},{"@type":"Answer","text":"

Is there a reason you’re using SMB in the first place? There are better connection options available…now is a good time to start researching alternatives \":wink:\" nothing like an emergency outage to gain traction on a project!<\/p>","upvoteCount":1,"datePublished":"2025-07-18T20:43:02.243Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/5","author":{"@type":"Person","name":"Jay-Updegrove","url":"https://community.spiceworks.com/u/Jay-Updegrove"}},{"@type":"Answer","text":"

\n
\n
<\/div>\n\"\" Jay Updegrove:<\/div>\n
\n

Is there a reason you’re using SMB in the first place?<\/p>\n<\/blockquote>\n<\/aside>\n

SMB is CIFS (\\server\\share), in itself this is expected, but SMB 1.0 shouldn’t be used.<\/p>","upvoteCount":4,"datePublished":"2025-07-18T20:44:58.702Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/6","author":{"@type":"Person","name":"Rod-IT","url":"https://community.spiceworks.com/u/Rod-IT"}},{"@type":"Answer","text":"

Try SMB 1.0 CIFS or disable Microsoft network client: Digitally sign communications(always)<\/p>\n

\"Screenshot
<\/use><\/svg>Screenshot 2025-07-15 105957<\/span>413×366 11.2 KB<\/span><\/use><\/svg><\/div><\/a><\/div><\/p>\n

\"image\"
<\/use><\/svg>image<\/span>780×635 69.2 KB<\/span><\/use><\/svg><\/div><\/a><\/div><\/p>","upvoteCount":2,"datePublished":"2025-07-19T04:21:23.470Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/7","author":{"@type":"Person","name":"naveenkatikam","url":"https://community.spiceworks.com/u/naveenkatikam"}},{"@type":"Answer","text":"

Did you “enable” local firewall for SMB, printer & file sharing on the local server especially for Domain profile ?<\/p>","upvoteCount":2,"datePublished":"2025-07-19T09:52:29.973Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/8","author":{"@type":"Person","name":"adrian_ych","url":"https://community.spiceworks.com/u/adrian_ych"}},{"@type":"Answer","text":"

@naveenkatikam<\/a><\/p>\n

As I posted over here too:<\/p>\n

\n
\n
<\/div>\n \"\"\n Windows file sharing issue<\/a> Windows<\/span><\/span><\/a>\n <\/div>\n
\n Please don’t. \nEnabling legacy protocols is a BAD idea. Even more so since both devices are Windows 11 and support SMB 3.1.1 by default.\n <\/blockquote>\n<\/aside>\n\n

Please don’t suggest this, that’s bad practise and likely NOT the issue.<\/p>\n

Both systems are new and should support SMB 3.1, turning on legacy systems is a very bad idea.<\/p>\n

Turning off signing is also a bad idea, I’m not sure why you would be suggesting bad practises.<\/p>","upvoteCount":3,"datePublished":"2025-07-19T16:00:06.396Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/9","author":{"@type":"Person","name":"Rod-IT","url":"https://community.spiceworks.com/u/Rod-IT"}},{"@type":"Answer","text":"

add domain users and see if it fixes.
\nyou could also add the local users group and remove everyone.<\/p>\n

‘Everyone’ requires the local guest account to be enabled - and is not recommended as it is a security risk.<\/p>","upvoteCount":2,"datePublished":"2025-07-21T12:37:21.629Z","url":"https://community.spiceworks.com/t/cannot-access-smb/1225096/10","author":{"@type":"Person","name":"matt7863","url":"https://community.spiceworks.com/u/matt7863"}}]}}