gistfile1.txt

<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <webSocket enabled="true" />
      <aspNetCore processPath="dotnet" arguments=".\App.dll" hostingModel="inprocess" requestTimeout="00:10:00">
        <environmentVariables>
          <!-- Tenta forçar o timeout via variável de ambiente que o .NET reconhece -->
          <environmentVariable name="ASPNETCORE_SIGNALR_HUB_CLIENT_TIMEOUT_INTERVAL" value="120000" />
        </environmentVariables>
      </aspNetCore>
    </system.webServer>
  </location>
</configuration>