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Could not establish secure channel for SSL/TLS with authority

    Question

  • Hi Everyone,

    An external provider is trying to submit files to an internal RHEL server via our TMG 2010 Reverse proxy.

    I log a filter on the web listener IP address and can see it accepts the connect, but the external provider reports this error:

    <ExceptionString>System.ServiceModel.Security.SecurityNegotiationException: Could not establish secure channel for SSL/TLS with authority 'fqdn.com'. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.

    regedt32 returns:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\Schannel\Protocols\SSL 2.0\Client]
    "DisabledByDefault"=dword:00000001

    Hope someone has seen this issue, thanks in advance.


    • Edited by DoJu Tuesday, July 10, 2018 8:07 AM
    Tuesday, July 10, 2018 7:49 AM