MacBook Keychain problems

Keychain password & login are only the same until you change one, then you need to change the other separately

Source: OS X: Keychain Access asks for keychain "login" after changing login password

Note: This doesn't happen if you change your account password using Accounts preferences.
If you want your default keychain to be unlocked automatically when you log in, synchronize your Keychain Access and account login passwords by doing this:

• Open Keychain Access (you can get to it by choosing Utilities from the Go menu in the Finder).
• From the Edit menu, choose Change Password for Keychain "login."
• Type the former password of the account that you are currently logged in to, then click OK.
• If you entered the correct password, a new window appears; enter the original password again in the Current Password field.
• In the New Password field, type the password that matches your current account password.
• Re-enter the newer password in the Verify field, then click OK.

This problem was with the "local items keychain". I found the following here and it worked for me:

Follow these steps to prevent prompts to unlock the Local Items keychain.

1. In Finder Select Go > Go to folder (⇧⌘G)
2. In the window that appears, type the following: ~/Library/Keychains/
3. Click OK.
4. Look for a folder with a name similar to this "A8F5E7B8-CEC1-4479-A7DF-F23CB076C8B8". Note: Each folder has a unique number.
5. Move this folder to the Trash.
6. Immediately choose Apple Menu () > Restart… to restart your Mac.

After restarting the computer, a new folder is created in the Keychains folder with a name similar to "4B29A0BB-599D-47FC-A2D1-42B5592B130B". There is no need to repeat the steps in this article, or to delete this folder. The new folder is expected and corrects the symptom described in this article.