PowerShell: System.Net.Http.HttpClient always fails on first attempted connection

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Steps to reproduce

This is a re-report of Issue #19486, which was resolved for inactivity but still persists in 7.4.0. I have golfed the problem down to the following minimum code example.

> PS> $client = New-Object -TypeName System.Net.Http.HttpClient
> PS> $r1=$client.GetStringAsync('http://www.google.com')
> PS> $r1.Status
> Faulted
> PS> $r1.Exception.InnerException.InnerException.Message
> Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host..
> PS> $r1.Exception.InnerException.InnerException.InnerException | Select SocketErrorCode,ErrorCode
> SocketErrorCode ErrorCode
> ConnectionReset     10054
> PS> $r2=$client.GetStringAsync('http://www.google.com')
> PS> $r2.Status
> RanToCompletion

Expected behavior

Should connect the first time.

Actual behavior

Always fails on the first attempt to connect to a site.

Error details

No output.

Environment data

Name                           Value
----                           -----
PSVersion                      7.4.0
PSEdition                      Core
GitCommitId                    7.4.0
OS                             Microsoft Windows 10.0.19045
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Visuals

No response