Dashboard App – ERR_HTTP2_INADEQUATE_TRANSPORT SECURITY (Microsoft Edge)

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Hi Dojo,

Whenever we are trying to access to the Dashboard app using Microsoft Edge, we are getting the following error:

ERR_HTTP2_INADEQUATE_TRANSPORT SECURITY

Currently only HTTPs is enabled.

I checked some sites reporting a similar issue where a possible solution is to update the Windows Registry. Have you seen this issue before? Please could you let us know how to solve this issue?

DMA version: 10.1.3.0-9963
OS version: Microsoft Server 2016

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 18th July 2023

1 Answer

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This looks to be a problem where the webserver is configured to use a weaker cipher than the client is allowed to (since HTTP/2).

I would not recommend to disable HTTP/2. Instead, I would disable the weak ciphers in the webserver (IIS in this case). You can use a tool like IISCrypto (see Best Practices) to disable the weaker ciphers.

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 18th July 2023
Miguel Obregon [SLC] [DevOps Catalyst] commented

Thanks Jens, we will check if it is possible to install the tool and proceed with disabling the weak ciphers. Once we have an update about the resolution of the issue we will update this question accordingly.