Please forgive me in advance - I've read through a TON of posts over the last 2 days and I've tried to keep up with as many as possible!

I'm anxious and excited like a lot of you because my ADR date is in 13 days!
SO, I understand there are issues with Conf#s from TA's versus booking directly with Disney. I understand the process of how to book online as I've played around with it (and cancelled!) and it's cool once you get the hang of it. So, anyone can book just 90 days out - it's the 90 +10 that's the issue. Where can I "test" my confirmation number and phone number? I'm almost positive the phone number is valid because I've seen our number in there, but the confirmation number will be the hiccup, correct? I went to the Online Check'in where it asks for a Confirmation number and a phone number and I'm getting the error message:
My Disney Vacation - Error
Sorry, we are not able to display your reservation at this time. Please try again later.
Is this a typical error message you all are experiencing or does this indicate indeed my conf# won't work?
I remember another poster asked if the TA is able to give us a different conf# so we could do these online ourselves, or is it the TA's are able to book online since they're connecting to a different site or portal?
If I have to call, no problem - I took the day off!

I'd love to be able to book online like most others, however and have the same opportunity at 6am.
I sincerely appreciate someone taking the time to answer my questions and give me advice!
Thanks,
Heather