To fix the issue, clear the cache of the Security Server and any proxy in your network:
- On the Security Server, stop the Trend Micro Security Server Master Service.
- Go to the ..\Trend Micro\Security Server\PCCSRV folder and delete all the pattern files (LPT$VPN.XXX) except for the oldest one.
- Go to ..\PCCSRV\Download and then delete the pattern folder.
- Go back to ..\PCCSRV and then delete the contents of the following folders (if available):
- ..\WEB\CGI\Temp\
- ..\WEB\Service\AU_Cache
- ..\WEB\Service\AU_Temp
- ..\WEB\CGI\Temp
- ..\WEB\CGI\Temp\Cache
- ..\WEB\Service\Temp\Cache
- ..\WEB\Service\Temp (all *.tmp files)
- ..\Admin\Temp*
- ..\Admin\Temp\Cache*
- Start the Trend Micro Security Server Master Service.
- Delete your browser's Temporary Internet Files and Cookies:
- On your browser, click Tools > Internet Options > General tab.
- Under Temporary Internet Files, click Delete Cookies > OK.
- Click Delete Files > OK > OK.
- If you are using a proxy, clear the proxy server's cache also by doing Steps 6a to 6c.
- Delete the ..\PCCSRV\Download\server.ini file.
- Open the Security Dashboard and check if you can now download updates.
If the procedure fails, refer to this article: Troubleshooting Security Server update issues in Worry-Free Business Security (WFBS)
If the issue persists, send the following information to Trend Micro Technical Support:
- WFBS Server version.
- Operating system and Service Pack of the server.
- Client deployment method used.
- Scan Engine version.
- Pattern File version (lpt$vpn.xxx).
- Detailed problem description.
- Other applications (including versions) running on the same server, if any.
- Network topology.
- Update type where the problem occurs (e.g. Manual, Scheduled, Tool).
- Proxy server and version, if present (note also if you are using authentication).
- Firewall product and version, if present (note also if you are using authentication)
- Version of the loadhttp.dll file.
- Version of the tmupdate.dll file.
- The following files (if available):
- ..\PCCSRV\Web\Service\AU_Data\AU_Log\tmudump.txt
- ..\PCCSRV\Web\CGI\Temp\tmudump.txt
- ..\PCCSRV\Web\CGI\Temp\patchdmp.txt
- ..\PCCSRV\Web\Service\Temp\tmudump.txt
- ..\PCCSRV\Web\Service\Temp\patchdmp.txt
- ..\PCCSRV\ofcscan.ini
- ..\PCCSRV\Private\Ofcserver.ini