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May 18, 2026

Troubleshooting Connection Problems

There are several configuration/setup problems that can result in an inability to launch a HTML Access (Blast) connection successfully.

  • Browser is not HTML5 compliant. Check that the browser version is one cited in the requirements.

  • Pop-up blocker enabled. The browser’s pop-up blocker could prevent opening the new window for a HTML Access connection. Make sure that the user disables the pop-up blocker.

  • Windows firewall disabled. Make sure that the Windows Firewall is installed and running on the user’s desktop. A disabled Windows Firewall will result in errors reported in the HTML Access logs.

  • Certificate errors. If you receive an error that indicates a missing or non-matching certificate, review the instructions above under Import Certificate and Record Certificate Thumbprint and confirm that you have performed the necessary steps.

    Note: You must repeat this process each time you open and republish an image.

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