• Another patch-induced conflict: Transport Layer Security fails with error 0x8009030f

    Microsoft has acknowledged a problem with the latest patches for Win7, 8.1, Server 2008,  2008 R2, 2012, 2012 R2 and Server 2016 – Monthly Rollups, Security-only or (apparently) Previews of Monthly Rollups.

    When attempting to connect, Transport Layer Security (TLS) and Secure Sockets Layer (SSL) might intermittently fail or timeout.  You might also recieve one or more of the with the following errors:

    • “The request was aborted: Could not create SSL/TLS secure Channel”
    •  error 0x8009030f
    • An error logged in the System Event Log for SCHANNEL event 36887 with alert code 20 and the description, “A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 20.​”

    If TLS is failing on your up-to-date Win7, 8.1 or related Server based machines, now you know why. There’s a fix, documented in the KB article, but it’s messy.

    Thx @abbodi86