Remote Desktop Services Health Monitor Fails after 2008R2 Windows Updates Applied

I've been having the same problem in my environment. After doing some monitor logging, I determined that there's a new RECV string coming back from the server...

In the UI, the

recv

\x03\x00\x00\x13\x0e\xd0\x00\x00\x124\x00\x02\x09\x08\x00\x02\x00\x00\x00

The ltm config for the monitor is

ltm monitor tcp MONITOR_NAME {
    defaults-from tcp
    description "Windows Server 2008 R2 RDS Monitor (recv str is not f5 specified, but found from checking monitor traffic logging)"
    destination *:*
    interval 30
    ip-dscp 0
    recv \\x03\\x00\\x00\\x13\\x0e\\xd0\\x00\\x00\\x124\\x00\\x02\\x09\\x08\\x00\\x02\\x00\\x00\\x00
    send \\x03\\x00\\x00\\x13\\x0e\\xe0\\x00\\x00\\x00\\x00\\x00\\x01\\x00\\x08\\x00\\x03\\x00\\x00\\x00
    time-until-up 0
    timeout 91
}

(Note: if it doesn't work, try replacing the double slashes with single slashes. My box has a strange habit of decoding special characters when I save changes)