Having the same issue to link my wife's application in MyCiC still no luck tried every information.Son-of-A-Gun said:You don't have to wait 24 hours before trying again, just create multiple accounts and keep trying until you get it right.
That's what I did, I think I tried with 5 or 6 accounts (different usernames but same password and email address to remember them).
When the last combination worked, I remembered what I did for it to work, I deleted that account and recreated the same steps that worked with my first (regular) account.
But the ECAS is updated and showing " 3. We started processing your application October 5, 2016."
Hopefully soon we get update and can link myCIC easily.