RD Web Client Browser Problem

[jackbrasher]

Running a single Server 2019 RDS w/ all roles assigned on this host.  RDP is working and Published Apps via RDWEB (SSO) are working perfectly.

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I installed the RD Web Client option (HTML 5).  It works with IE 11, but will not connect to any other browser (Edge, Chrome, FireFox).

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Certificate is correct, issued by the internal MS CA.

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Any idea as to why the other browsers will not connect?  Error simply states "Connection Reset"

[#2]

@jackbrasher I know this is a bit dated, but I am running to this identical issue. Were you able to find a fix to use Chrome/Edge with RDS