![]() Successfully processed 1 files Failed processing 0 files Per a previous commenter's question, my ICACLS output: C:\>icacls /source3/smbd/service.c:544(make_connection_snum) /source3/smbd/service.c:355(create_connection_session_info)Ĭreate_connection_session_info: guest user (from session setup) not permitted to access this share (personal) It works, but it certainly creates some noisy logs. I haven't done the regression testing of rolling back to old versions of windows, but I can share that I'm seeing the same problem here, with Win 10 19044.1415 connecting to a TrueNAS Core 12 box. Is there any way to fix this behavior on either the Samba or Windows 10 client side? I've seen some similar reports of this online, but thus far no solutions and I haven't been able to find anything in smb.conf that would "fix" this (apparent?) bug. ![]() Despite this, I still get phantom guest login attempts from the Windows 10 clients (though the error changes on the Samba server to say something about guest access being blocked due to encryption).Īgain, I can login to the file server just fine and things do work- except for the bit where Windows 10 appears to be attempting to spawn a guest login for every file accessed. I've tried outright disabling guest access in Samba, and I've tried enforcing encryption/server signing as well (which disables guest access entirely). Administratively disabling that function doesn't seem to change anything. Windows Defender isn't configured to scan network shares. It is disabled by default and I haven't overridden it using GPOs. Guest access has NOT been enabled in Windows 10. Nevetheless, Windows 10 is constantly spamming Samba with unauthenticated guest login attempts on every file access. My network shares work great, so I don't think this is a credential issue. The client authenticates with the server just fine. I want to be clear about a couple of things: This bug appears to have been introduced sometime in the past couple of months during a KB rollup, since a fresh install of Windows 10 does not provoke this behavior- only a fully updated installation will. Over on the Windows 10 client, I see the event viewer under Applications and Services Logs -> Microsoft -> Windows -> SMBClient -> Security filling up with the following errors: The SMB client failed to connect to the share.Ī process has requested access to an object, but has not been granted those access rights. /source3/smbd/service.c:545(make_connection_snum)Ĭreate_connection_session_info failed: NT_STATUS_ACCESS_DENIED /source3/smbd/service.c:355(create_connection_session_info)Ĭreate_connection_session_info: guest user (from session setup) not permitted to access this share (MY_USERNAME) The errors I get in the Samba logs are as follows. I have noticed that one of the recent patches to Windows 10 seems to have introduced some sort of nasty bug with SMB that causes Windows 10 to spam unauthenticated guest requests at the SMB server for every file accessed. The tech giant has been urged to fix these issues promptly before releasing new patches, but the company has not responded.I am currently running a Samba server for file sharing on a SOHO network. Microsoft’s latest Windows 10 update, KB5028166, is causing widespread network disruptions and performance glitches for enterprise users and gamers. Some have even considered shifting to Linux, despite the potential challenges in software compatibility for their work apps. Users face performance issues even after attempts to restore speed by clearing caches, running system scans, and rebooting their devices. The update has generally slowed down systems, leading to a surge in user frustration. ![]() Even popular games, such as Cyberpunk, that previously ran smoothly are now fraught with annoying loading pauses and disappearing icons, which negatively affects the gaming experience. Users report that their games and apps have become noticeably laggy since the KB5028166 installation. Webpages are often delayed or display a ‘page not responding’ message,” a user reported. “The latest update has slowed my PC to a crawl, with Chrome and other apps taking minutes to open. Several users reported their games and apps becoming laggy after the update. KB5028166 is slowing down PCs, gamesīeyond the enterprise world, gamers have also been hit by Windows 10’s July 2023 update. However, most reports have emerged from Windows 10 users, as it’s more prevalent among enterprise users. Similar issues have been observed on the Windows 11 July 2023 update. ![]()
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