so i have a vista home premium box connected to my home network, as well as a buffalo linkstation nas and a few other devices. i had the linkstation mapped to a drive letter in vista, and could also access the linkstation through a program called "nas navigator". i could also access the nas over ip via web browser/ddns as well. about a week or so ago, i lost connection ability to the nas from vista, in all forms. i cannot connect via the mapped drive, i cannot connect via the nas navigator, and i cannot connect via web browser. *edit to add* it's worth noting that the vista box can see the the nas on the network, and the mapped drive is still connected. i just cannot access any of the contents of the nas.
initially, i thought it was a nas issue, but i quickly realized that i did not lose _any_ connectivity on any of my other devices. every other device i use can connect with it just as they normally have, with no issues whatsoever. in doing some research, i found a couple possible causes. first, i tried to adjust the NTLM settings. apparently the buffalo nas drive uses older samba standards that cannot authenticate via NTLMv2, so i switched the registry value in vista, located at "HKLM-->SYSTEM-->CurrentControlSet-->Control-->Lsa" "LmCompatibilityLevel" to "1", defined as "Send LM & NTLM -- use NTLMv2 session security if negotiated". this did not work.
i also tried other suggestions, such as turning off IPv6 and even using IP addresses instead of device names and drive maps. nothing. so, i'm left trying to understand what may have happened to cause this sudden change in connectivity. is it possible that a recent windows update could have knocked it out? my next attempt at fixing this is to roll back any updates in the last two weeks. but in the meantime, does anyone out there have any knowledge of this issue, and/or a fix or other workaround? right now i'm forced to reboot the box into an old linux distro to transfer files between the vista drive and the nas, which is a pain (the vista reboot process is not quick).
thanks in advance, for reading and for any recommendations!
Edited by hamluis, 23 April 2014 - 04:32 PM.
Moved from Vista to Networking - Hamluis.