[KB3667] "An unexpected error has occurred" when accessing ESET PROTECT On-Prem


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



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 PROTECT Web Console from an unsupported web browser. See the table below for a list of supported web browsers:

Web browser
Mozilla Firefox
Microsoft Edge
Google Chrome
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 ESET PROTECT On-Prem (not recommended).

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