Forced to re-verify a child account - why?

This evening, my son's Microsoft account stopped working - xbox live, Windows 8.1 sign in, web sign in, etc. After some annoying detective work, I finally figured out that I had to sign in with my account and verify that his account was authorized. Why
the sudden change? He's been using his child account with my approval for over a year. Do child accounts require re-verification after some set length of time? Or did his verification get canceled when I recently changed the password on my own MS account?

:)

 

Parent account troubles (URGENT! PLEASE ANSWER WITHIN 7 DAYS IF POSSIBLE)

When a child account became orphaned for any reason, you need to contact Xbox support. they'll be able to investigate your request and, if elegible, to re-add an adult account to your child account

Note: In these case, the adult account owner must contact support for this request, not the child, and inform and verify both accounts

Good luck

 

Can' t download XBox Live Profile on 360: Error 801540A9

Can you try to re-associate the child account to the parent account? To do so:

1. Sign in to your Microsoft account and select the
   Family tab.
2. Select Add a child.
3. Enter the email address of the child account that you want to re-associate with the parent account. This will send an invitation to the child account’s email address.
   
4. Sign out of your Microsoft account and sign in to the child account.
   
   Note For security reasons, you may be asked to verify the account.
5. Select the button labeled Sign in and accept.
   
   Note Email can be found by selecting View inbox.

 

Hi,

The reason why you had to re-verify the child account is due to recent security/policy update in the system.