I'm monitoring this thread carefully because I did get the 1023 firmware from the auto-update on my tv, and since, I get the Smart-Hub Network interference error when use "A" to Login.
I also noticed that Samsung has not yet release the 1023 on the firmware download page, which let me think that they realized something is wrong with the update (maybe what you point it with the CA could well possibly be what's happening).
Did you contact Samsung and pass your findings? I'm curious to see what is their official answer to this problem. I would feel better if it's something like "we are aware of the problem and working on a fix". At least I would stop searching the web for an answer.