[KB3667] "An unexpected error has occurred" when accessing the Web Console (ESET Remote Administrator 6.x)


  • You receive the notification "An unexpected error has occurred" or "An uncaught exception has occurred!"

Figure 1-1


End of support for version 6.4 and 6.5 of ESET Remote Administrator / MDM

ESET Remote Administrator version 6.5 is currently in Limited Support status and will soon be in Basic Support status. It is expected to reach End of Life status in December 2020.

ESET Remote Administrator version 6.4 is currently in End of Life status and no longer available for download.

The MDM functionality in ESET Remote Administrator version 6 is currently in End of Life status and no longer available for download


This article was created in quick response to an emerging issue. In some cases, the steps below may not resolve this issue.

This error typically occurs when you are accessing the ESET Remote Administrator Web Console from an unsupported web browser. See the table below for a list of supported web browsers.

Web browser Version supported
Mozilla Firefox 20+
Internet Explorer 10+
Chrome 23+
Safari 6+
Opera 12+

If you are using an unsupported web browser, we recommend that you upgrade to one that is supported. However, you can choose to Reload the application or click Continue to ignore the error and continue using the ERA Web Console (not recommended).

For more information on the ERA Web Console, including installation and system requirements, see the following ESET Online Help: