RE: RPC server is unavailable (vista backup to NAS)
Thank you for posting this query. I have the exact same issue, and note
that it has surfaced on the web from time to time ever since Vista was
I am using a Buffalo LinkStation Pro NAS; I can see the drive and all files
in Explorer; when attempting to use Vista's native backup I get the same
challenge for user name and password; I am logged on as administrator and
have run backup in "administrator mode" from start (query whether this is
redundant if you are already logged on as admin); I have NO password set to
my admin account.
I have tried every combination of user name (the one associated with my
account as admin, the simple default of "administrator" and none); nothing
works. I leave the password blank because there is none.
When selecting the NAV drive I can actually see the drive in the backup
dialogue, and even a long code of letters and numbers which appears to have
been assigned by the aborted backup session.
This is a good question for MVPs, it has been out there for over a year and
it should have an answer/fix by now.
Thanks for posting this query and any assistance it attracts.
> using vista ultimate back up and restor center trying to back up my
> files to a welland Netshare NAS 500Gb drive.
> I can browse to the NAS and select the folder but when I click next I
> "Enter a user name and password to access \\storage-rimu\paul\."
> I enter my user name and password then I get
> "The network share could not be accessed for the following reason:
> The RPC server is unavailable. (0x800706BA)
> Please ensure the the network location is valid."
> I can connect to the NAS through windows explorer fine, and can map the
> network drive (it askes for the user name and password which is the same
> one I used above) I can add files and folders etc. very frustrating!
> In the back up and restore center when I type \\10.1.1.5\ it even gives
> me the list of folders I have on the NAS and if I going to the NAS and
> under SMB remove a folder or add a folder it updates in the restore
> center when i go back in!!!
> I have tried:
> No passwords on the folders
> No firewall
> Different folder names / read only options
> Changing work groups (all on the same work group)
> Changed "Network Security: LAN Manager authentication level" Setting
> from "Send NTLMv2 response only"
> to "Send LM & NTLM - use NTLMv2 session security if negotiated"
> Starting and stoping the RPC under "services.msc"
> please help it is very much appricated