![V7] ISSUE: LAN manager authentication level must be 3 or higher (cannot create MS Exchange mail level backup) [Ahsay Wiki] V7] ISSUE: LAN manager authentication level must be 3 or higher (cannot create MS Exchange mail level backup) [Ahsay Wiki]](http://wiki.ahsay.com/lib/exe/fetch.php?media=public:5011_0.png)
V7] ISSUE: LAN manager authentication level must be 3 or higher (cannot create MS Exchange mail level backup) [Ahsay Wiki]
Set "Network Security: LAN Manager authentication level" for NTLMv2 · Issue #56 · DigitalRuby/IPBan · GitHub
![LAN Manager authentication level must be 3 or higher on Exchange 2013 mailbox backup - BOBcloud Backups (desktop and server) - BOBcloud Forum LAN Manager authentication level must be 3 or higher on Exchange 2013 mailbox backup - BOBcloud Backups (desktop and server) - BOBcloud Forum](https://forum.bobcloud.net/uploads/default/original/1X/829a1886619c825045ee7d4e696e3d35351570fc.png)
LAN Manager authentication level must be 3 or higher on Exchange 2013 mailbox backup - BOBcloud Backups (desktop and server) - BOBcloud Forum
![batch file - Setting LmCompatibilityLevel in Registry Editor is same as changing Local Security Policy? - Stack Overflow batch file - Setting LmCompatibilityLevel in Registry Editor is same as changing Local Security Policy? - Stack Overflow](https://i.stack.imgur.com/CNa3r.png)