Windows 7 - same old shares problem…
// July 20th, 2009 // Uncategorized
Vista caused problems with it’s default setting of “NTLMv2-only” on the LAN Manager authentication level. This setting means that a Vista station is only allowed to connect to network servers of an equal but not lesser authentication level (lesser would be XP and earlier Windows versions, some network storage drives and Linux Samba based shared resources).The issue was easily treatable by changing a local security policy (or via registry) to permit negotiation of a lower security level authentication methods before trying the higher one - NTLMv2.
Same issue inherently remained in Windows 7 (currently RC). The solution steps follow below…
For Windows 7 Professional, Enterprise and Ultimate editions:
Open Control Panel, Administrative Tools, Local Security Policy -> Local Policies -> Security Options…
Locate the setting “Network security: LAN Manager authentication level“, change it to “Send LM & NTLM - use NTLMv2 session security if negotiated“, Apply and try connecting again…
For Starter and Home editions:
Run regedit, open the branch: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
Locate the key “LmCompatibilityLevel“, modify it’s value to be “1“, try opening that “share” again…
Leave a comment
You must be logged in to post a comment.
