Windows 7 clients missing redirected Documents folder and Desktop .jpg

We have Windows 7 clients in an AD domain with 2008 R2 Domain Controllers.

Some users, when they log in, are missing all files in their Documents folder (their Documents folders are redirected to a DFS network share) and the .jpg (also on a network share) which sets their Desktop does not load so they end up with a black desktop.

Clients can browse the internet.
Clients can ping (by hostname) all Domain controllers.
nslookup fails with a 'non existent domain' error.. unless you specify the ip address of a domain controller in the query.. ie nslookup www.yahoo.com 192.168.0.3

ipconfig /flushdns
arp -d
reboot

All help resolve the problem.. but only temporarily..

Where is the best place to start looking.. dns, ldap, net logon, dcdiag, dfsutil,..?

Any help would be greatly appreciated..

thanks

Mat
matedwardsAsked:
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matedwardsConnect With a Mentor Author Commented:
Unfortunately the problem still persists. Disabling Offline Files and folders has helped reduce the occurrences, but many users are still getting not getting desktop redirection.  

DCDiag, DNSlint, DFsDiag do not show anything obvious..
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vivigattCommented:
It seems that your clients are not able to resolve some names on time.
Are you sure that your client have not received an IP config from another (rogue) DHCP server?
Try the Rogue DHCP Server detection tool that you can find at the end of this page:
http://blogs.technet.com/b/teamdhcp/archive/2009/07/03/rogue-dhcp-server-detection.aspx

If no rogue DHCP server is found, check that the clients do have the correct DNS config (ipconfig /all).
Normally, DNS queries should work if they have one DNS server (that must be a domain controller too) as their preferred DNS server (1st in the list of DNS servers they can use)
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matedwardsAuthor Commented:
Thanks vivgatt

I can see no rogue ip addresses.. and the clients are all pointing to one of 2 DCs. I noticed that login times are long (4-5min) and the DFS shares do not appear immediately. I believe it is a dns problem or dfs referencing dns which casues a time out issues. What are the best diagnotic tools.?

Many thanks

Mat
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vivigattCommented:
I usually use network monitors (Wireshark or MS Netmon) to see what happens. If you are not familiar with these tools, you will have to understand how they work and how to use filtering so that you mainly get the packets you are interested in.

You can start here:
http://www.howtogeek.com/104278/how-to-use-wireshark-to-capture-filter-and-inspect-packets/

Then identify a client that has issues and run wireshark on it, filtering on protocols and/or server(s) addresses.
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matedwardsAuthor Commented:
We've narrowed it down to Folder Redirection for Desktop and Documents not applying.. to a specific set of users in a specific AD site. We are getting an Event ID 1085 error.
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vivigattCommented:
Are you also using roaming profiles?
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matedwardsAuthor Commented:
No. Only Documents a redirected. Profiles are local.

As soon as a users home path in ADU&C is changed to a UNC path instead of DFS path it fixes the Documents problem - we think.!
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matedwardsAuthor Commented:
It now looks to be an issue with Sync Centre (offline files) and the DFS share. When the documents folder is empty a message at the bottom says Offline Status: (Offline).

Unfortunately, Sync Centre has no log files give more information.

We have disabled Sync Centre locally at the client machine and disabled Offline files in a gpo.

We have also disabled 'Configure slow link detection' in the gpo as well.

2 very good articles are below:

http://www.sirkit.ca/wiki/2012/11/windows-domain-dfs-namespace-access-is-denied-using-domain-fqdn-access-allowed-using-server-unc-paths-directly/

http://www.syswow64.co.uk/2012/09/windows-7-offline-files-will-not-go.html
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matedwardsAuthor Commented:
Unfortuantely will have to close this question with no resolution. As the problem still persists.
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