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Intermittent connectivity to share 0x80070035

Posted on 2011-10-25
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Running SBS 2008 R2 on a virtual server,

we have about 8 virtual servers backing up to the NAS,
On some servers the UNC path does not work and it is only accessible via \\192.168.x.x
On others the UNC path works without issue

But on one server it does not make a difference if the UNC path \\NAS is used or the ip address \\192.168.x.x
doing a ping 192.168.x.x -t and letting it run for a couple of minutes lets me access the NAS ( both UNC and IP )

Its a Synology diskstation NAS



Let me know if there's any more information you need

Thanks in advance!
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Question by:tech_tonic
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by:vaderj
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on your domain controller how does the DNS for each of those VM's look?
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by:tech_tonic
ID: 37054248
the DNS is configured correctly, this appears to be an SMB issue with the NAS

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by:vaderj
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ID: 37054282
Ok, how about the hosts file on the server that is having issues? I am assuming that WINS is not in use, that DNS is the only names service in use?  
Hosts file is in windows\system32\drivers\etc\hosts
issues like this do indicate a minor configuration issue.
Also, is the problem server configured dhcp or static, amd what is your subnet size/range and mask?
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by:tech_tonic
ID: 37054336
its not one particular server that is having issues, first it was server 9 and 5 and now its 5, 2 and server 1 ( the VM host ) and my desktop PC

The hosts file on all of the servers is default;

127.0.0.1       localhost
::1             localhost

all of the servers have static IP addresses



All of these computers are able to connect to other network shares
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by:tech_tonic
ID: 37054642
The NAS is a DS710+
It has been upgraded to the latest firmware DSM 3.2-1944

Firmware upgrade has not resolved this issue.
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Expert Comment

by:mcsween
ID: 37077062
See if KB2536276 is installed on the clients.  It was supposed to fix a vulnerability in SMB but seems to be causing a lot of trouble for people.

http://technet.microsoft.com/en-us/security/bulletin/ms11-043
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by:tech_tonic
ID: 37091410
Unfortunately that update is already installed on these machines
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by:mcsween
ID: 37093922
I meant to remove it if it was installed.  That update was causing a lot of issues with SMB.
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by:tech_tonic
ID: 37097811
Apologies, I misread.

I have uninstalled this update on my Win 7 PC and I am still faced with the same problem

I also tried creating a new user on the NAS with a more complex password to no avail.



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by:tech_tonic
ID: 37104736
@vaderj

our range is 192.168.100.1 - 192.168.100.254

192.168.100.xx
255.255.255.0

Single subnet.
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tech_tonic earned 0 total points
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This was a combination of issues, An IP Address conflict and also the servers did not have the correct permissions to access the specific backup folder.
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by:tech_tonic
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