Extremely slow access to SBS2008 STD from WinXP clients

Recently migrated from SBS2003 to SBS2011, now WinXP clients are extremely slow when browsing mapped drives. Win7 and server 08R2 RDP server access is fine. It is extremely noticeable when adding attachments to outlook via the paperclip (2-3 minute delay). "Drag & Drop" in outlook does NOT experience this slowdown. Also noticeable when uploading items to web-based app.

I've tried:
Turning off SMB2, disabling all "advanced" network functions on NIC, applying latest service packs, clearing mapped drives out of registry, and lots of other things.

Problem affects any user profile on client pc.
cnptechnologiesAsked:
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R. Andrew KoffronCommented:
slow connection issues I've had in all flavors of SBS have been like 90% been related to the AD/DNS/DHCP relationship.

ensure your SBS server is the DHCP server, and the DNS servers, that DHCP is updating the DNS and the SBS server is not using forwarders unless you have a specific business need for controlling DNS requests.
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cnptechnologiesAuthor Commented:
Thanks for the quick response. The new server IS the AD/DNS/DHCP for the network. the old server has been dcpromo'd and powered off. I'm fairly certain there are no forwarders in DNS but i'll give it another look to confirm.
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jaredr80Commented:
DNS should be utilizing forwarders in SBS 2011. You want the NIC set as your SBS server for DNS, not an outside DNS. I don't think forwarders would be causing issues, like you are observing.

Have you run the "Fix my Network Wizard" in the SBS console? Also, how are you currently mapping the drives, by script? If so, you should look into newer options including mapping the drives via GPO. It is cleaner and usually faster. Also, I would check event viewer for possible signs. Finally, it may be worth unjoining and rejoining computer to domain.

-Jared
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WORKS2011Austin Tech CompanyCommented:
run dcdiag /test:dns and post the results
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cnptechnologiesAuthor Commented:
Tried removing/rejoining the domain and that made no difference. Also, there was an incorrect name server setting on a zone in DNS, fixed that as well but the problem remains. Ran the dcdiag and saw the old DC in there (broken delegation). Fixed that and now the dcdiags seem to be okay. But the problems persists. Also, I ran the "fix my network" wizard and allowed it to address the issues it found, but there is not change in the problem. Any ideas?

C:\Users\administrator.COMPANY>dcdiag /test:dns

Directory Server Diagnosis

Performing initial setup:
   Trying to find home server...
   Home Server = SERVER-SBS
   * Identified AD Forest.
   Done gathering initial info.

Doing initial required tests

   Testing server: Default-First-Site-Name\SERVER-SBS
      Starting test: Connectivity
         ......................... SERVER-SBS passed test Connectivity

Doing primary tests

   Testing server: Default-First-Site-Name\SERVER-SBS

      Starting test: DNS

         DNS Tests are running and not hung. Please wait a few minutes...
         ......................... SERVER-SBS passed test DNS

   Running partition tests on : ForestDnsZones

   Running partition tests on : DomainDnsZones

   Running partition tests on : Schema

   Running partition tests on : Configuration

   Running partition tests on : company

   Running enterprise tests on : company.local
      Starting test: DNS
         Test results for domain controllers:

            DC: SERVER-SBS.company.local
            Domain: company.local


               TEST: Dynamic update (Dyn)
                  Warning: Failed to delete the test record dcdiag-test-record i
n zone company.local

         Summary of test results for DNS servers used by the above domain
         controllers:

            DNS server: 2001:500:1::803f:235 (h.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:500:1::803f:235

            DNS server: 2001:500:2d::d (d.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:500:2d::d

            DNS server: 2001:500:2f::f (f.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:500:2f::f

            DNS server: 2001:500:3::42 (l.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:500:3::42

            DNS server: 2001:503:ba3e::2:30 (a.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:503:ba3e::2:30

            DNS server: 2001:503:c27::2:30 (j.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:503:c27::2:30

            DNS server: 2001:7fd::1 (k.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:7fd::1

            DNS server: 2001:7fe::53 (i.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:7fe::53

            DNS server: 2001:dc3::35 (m.root-servers.net.)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa failed on the DNS server 2001:dc3::35

               SERVER-SBS                      PASS PASS PASS PASS WARN PASS n/a
         ......................... company.local passed test DNS
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cnptechnologiesAuthor Commented:
Still trying things on this to no avail. Found the "sbsserver" environment variable still pointed to old server and changed this. Tried adding IPv6 to WinXP machines, removed/re-added clients/services on NIC, prayed to Mecca-Nothing is helping.
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cnptechnologiesAuthor Commented:
I believe I have FINALLY resolved this by searching the registry of the NEW server for instances of the old servername and deleting the entries that don't matter while changing the ones that do matter to the new servername.
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cnptechnologiesAuthor Commented:
Took months of troubleshooting and research to find this solution. it is likely to save others a lot of frustration should they encounter the same issue.
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