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TMProxy blocks Internet access on Windows MultiPoint Server when Remote Desktop IP Virtualization is enabled

    • Updated:
    • 15 Oct 2014
    • Product/Version:
    • Worry-Free Business Security Standard/Advanced 8.0
    • Worry-Free Business Security Standard/Advanced 9.0
    • Platform:
    • Windows 2008 Server R2
    • Windows 2011 Small Business Server Essentials
    • Windows 2011 Small Business Server Standard
Summary
You cannot access the Internet when the Worry-Free Business Security (WFBS) Agent is loaded.
You already tried the following troubleshooting steps but the issue still persist:
  1. Whitelist the IP of the firewall.
  2. Set the SockSendBufSize and SocSendRequestBufSize to the maximum.
When you check the TMProxy logs, you see entries similar to the following:
30/09/2014 14:12:50.720 68ec:331c !!! CTmProxyApp::DoSetRedirectionPortForWfp - Open TmWFP driver failed (name="\\.\tmwfp", err=2) - TmProxyApp.cpp(1105)
30/09/2014 14:12:50.739 68ec:331c !!! [TmpxCfg] ReadValue failed (key=WebMailActionSizeThreshold, ret=-16) - ManagerHTTPCommon.cpp(279)
30/09/2014 14:12:50.741 68ec:331c !!! [TmpxCfg] ReadValue failed (key=HfeTargetMethod, ret=-16) - ManagerHTTPCommon.cpp(629)
30/09/2014 14:12:50.741 68ec:331c !!! [TmpxCfg] ReadValue failed (key=HfeMaxDecompressSize, ret=-16) - ManagerHTTPCommon.cpp(637)
30/09/2014 14:12:50.744 68ec:331c !!! CEngineUrlFCommon: Failed to read registry (item=DRSScoreThresHold, ret=-16) - EngineUrlFCommon.cpp(700)
30/09/2014 14:12:50.744 68ec:331c !!! CEngineUrlFCommon: Failed to read registry (item=DRSCredBlock, ret=-16) - EngineUrlFCommon.cpp(707)
30/09/2014 14:12:50.761 68ec:331c !!! Proxy Server string is NULL, set eType to TM_UF_PROXY_NONE for Tmufe - UrlServerLookup.cpp(101)
30/09/2014 14:12:50.771 68ec:331c !!! CFuncPluginManager::ReadConfig(): result 0 - FuncPluginManager.cpp(102)
30/09/2014 14:19:55.438 68ec:39ac !!! CFuncPluginManager::ReadConfig(): result 0 - FuncPluginManager.cpp(102)
30/09/2014 14:19:55.538 68ec:39ac !!! CFuncPluginManager::ReadConfig(): result 0 - FuncPluginManager.cpp(102)
30/09/2014 14:19:55.649 6a80:2e08 !!! CFuncPluginManager::ReadConfig(): result 0 - FuncPluginManager.cpp(102)
Details
Public
The issue usually happens on a Windows MultiPoint Server 2011 (MS Windows Server 2008 R2's Remote Desktop Services base) when Remote Desktop IP Virtualization is enabled. The Remote Desktop IP Virtualization is in conflict with TMProxy because it does not support the said feature. The Remote Desktop IP Virtualization feature stops TMProxy from getting the redirect connection.
In Windows Vista (and previous OS), Trend Micro implement content scanning via redirect connection to TMProxy.
For Windows 7 (and later OS), Trend Micro implemented content scanning to not use redirect connections.
To be able to connect to the Internet, you need to disable Remote Desktop IP Virtualization.
If you need to use Remote Desktop IP Virtualization, we suggest using a Windows 8 base OS.
For more information about Remote Desktop IP Virtualization, refer to the Microsoft Knowledge Base article: Configure Remote Desktop IP Virtualization.
Premium
Internal
Rating:
Category:
Configure; Troubleshoot
Solution Id:
1105467
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