- Check if the Deep Security Agent driver (TBIMDSA.SYS) has been updated to the latest version.
- Verify the file under C:\Windows\System32\Drivers\TBIMDSA.SYS. The file should be using the latest version, or the version that comes with the installation. Otherwise, reboot the machine and check if the file has been updated.
- You may also remove the Trend Micro DSA Filter Driver under Network Properties and then reboot the machine. After rebooting, the driver will be installed back to the machine using the latest version that comes with the installation.