Thin clients cannot login to Remote Desktop on Windows 2008 R2

Over the weekend I upgraded from SBS2003 to SBS2011.  Everything seems to work great except for my remote users.  We have several users that normally access a Win2008r2 terminal server with Wyse C10LE thin clients.  This morning, the TS will not allow users to login from the thin clients.  The clients connect to the server but the login fails and the TS logs error 4625.  However, I can login from the thin clients as can another Admin.  Also, users that launch RD from a Windows desktop have no problem logging in.

Here is the error generated on the TS:
Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          3/16/2015 11:07:15 AM
Event ID:      4625
Task Category: Logon
Level:         Information
Keywords:      Audit Failure
User:          N/A
Computer:      RDServer.domain.local
Description:
An account failed to log on.

Subject:
      Security ID:            NULL SID
      Account Name:            -
      Account Domain:            -
      Logon ID:            0x0

Logon Type:                  3

Account For Which Logon Failed:
      Security ID:            NULL SID
      Account Name:            Username
      Account Domain:            domain.local

Failure Information:
      Failure Reason:            An Error occured during Logon.
      Status:                  0xc000006d
      Sub Status:            0x0

Process Information:
      Caller Process ID:      0x0
      Caller Process Name:      -

Network Information:
      Workstation Name:      
      Source Network Address:      -
      Source Port:            -

Detailed Authentication Information:
      Logon Process:            NtLmSsp
      Authentication Package:      NTLM
      Transited Services:      -
      Package Name (NTLM only):      -
      Key Length:            0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.
      - Transited services indicate which intermediate services have participated in this logon request.
      - Package name indicates which sub-protocol was used among the NTLM protocols.
      - Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
    <EventID>4625</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>12544</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8010000000000000</Keywords>
    <TimeCreated SystemTime="2015-03-16T18:07:15.961239800Z" />
    <EventRecordID>4528681</EventRecordID>
    <Correlation />
    <Execution ProcessID="604" ThreadID="816" />
    <Channel>Security</Channel>
    <Computer>RDServer.domain.local</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="SubjectUserSid">S-1-0-0</Data>
    <Data Name="SubjectUserName">-</Data>
    <Data Name="SubjectDomainName">-</Data>
    <Data Name="SubjectLogonId">0x0</Data>
    <Data Name="TargetUserSid">S-1-0-0</Data>
    <Data Name="TargetUserName">tfaulkner</Data>
    <Data Name="TargetDomainName">domain.local</Data>
    <Data Name="Status">0xc000006d</Data>
    <Data Name="FailureReason">%%2304</Data>
    <Data Name="SubStatus">0x0</Data>
    <Data Name="LogonType">3</Data>
    <Data Name="LogonProcessName">NtLmSsp </Data>
    <Data Name="AuthenticationPackageName">NTLM</Data>
    <Data Name="WorkstationName">
    </Data>
    <Data Name="TransmittedServices">-</Data>
    <Data Name="LmPackageName">-</Data>
    <Data Name="KeyLength">0</Data>
    <Data Name="ProcessId">0x0</Data>
    <Data Name="ProcessName">-</Data>
    <Data Name="IpAddress">-</Data>
    <Data Name="IpPort">-</Data>
  </EventData>
</Event>
rreckardAsked:
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Lionel MMSmall Business IT ConsultantCommented:
This may be due to latest Windows updates, many people, including me, are encountering remote logon issues after this months Windows updates. I have been unable to find a solution myself -- all I can do is reboot the remote system and try again and/or wait and try later. There are similar questions on EE but when I last checked yesterday no solution yet other than to uninstall the latest Windows updates.

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rreckardAuthor Commented:
Thanks for the response.  I rebooted everything last night and it works today.  I had assumed it was related to the migration/upgrade but updates makes more sense.
lonsoCommented:
this just worked for me.  I thought I was going Bat Squeeze crazy

http://support.microsoft.com/en-us/kb/2493594
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