Step 1
Log into the Apple ID site: https://appleid.apple.com/#!&page=signin
Step 2
Scroll down to the “Security” section.
Step 3
Click on the “Generate Password…” link under “APP-SPECIFIC PASSWORDS” heading.
Step 4
Enter the name of the app-specific password.
Step 5
Copy the password generated by apple, and use that as the password when trying to link your account.