Hello Ikearat,
It would be very hard to provide a specific reason this may have occurred, given the information we know thus far; we'd only be speculating.
Where are you updating your Apple ID password on your iPad exactly? Is it prompting for the account recovery code or 6-digit code, as it may have been connected to the network when account recovery was in process.
According to: How to use account recovery when you can’t reset your Apple ID password
After you start account recovery
After you request account recovery, you get an email with a confirmation of your request and the date and time of when you can expect to regain access.
- If you submitted your account recovery request with iforgot.apple.com through your device's browser, you should avoid using that device during this period. Using that device might cancel account recovery.
- To avoid delays, turn off other devices that are signed in with your Apple ID until account recovery is complete.
When the wait period is over, Apple sends you a text or automated phone call with instructions to regain access to your account. Follow the instructions to immediately regain access to your Apple ID.
In some cases, you might be able to speed up the account recovery process or reset your password immediately by verifying a six-digit code sent to your primary email address. You might also be able to shorten the wait time by providing credit-card details to confirm your identity. If you’re given this option, an authorization request goes to the card issuer.*
Was your iPad on and active during account recovery? Is the iPad up to date? Is the iPad using the same Apple ID as your other devices? This will continue to help us narrow down the issue and work towards a solution together.
Hoping to hear back, take care.
