More recent versions of #Windows try to enforce security in some kindof dumb ways, and one is that if you're attempting to access a Samba fileshare that doesn't require credentials, you might get something like
{F2515 size=full}
To solve, you need to allow "insecure guest logins" for remote shares . You can do this via either:
* {nav gpedit.msc > icon=desktop, name=Computer Configuration > icon=folder, name=Administrative Templates > icon=folder, name=Network > icon=folder, name=Lanman Workstation > icon=file-o, name=Enable insecure guest logons}
* In {nav cmd.exe}, `reg add HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters /v AllowInsecureGuestAuth /t reg_dword /d 00000001 /f`
* In {nav powershell}, `Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" -Name "AllowInsecureGuestAuth" -Type DWord -Value 1`
In Windows 11 (as of 24H2) you now additionally need to set [[ https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/overview-server-message-block-signing|the client to not demand signing]], so also do one of:
* {nav gpedit.msc > icon=desktop, name=Computer Configuration > icon=folder, name=Windows Settings > icon=folder, name=Security Settings > icon=folder, name=Local Policies > icon=folder, name=Security Options > icon=file-o, name=Microsoft network client: Digitally sign communications > Disabled}
* In {nav cmd.exe}, `reg add HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanManWorkstation\Parameters /v RequireSecuritySignature /t reg_dword /d 00000000 /f`
* In {nav powershell}, `Set-ItemProperty -Path "HKLM:\System\CurrentControlSet\Services\LanManWorkstation\Parameters" -Name "RequireSecuritySignature" -Type DWord -Value 0`