Q: FaceTime keeps asking for Password

You would sign out of FaceTime in its preferences window. Have you done that?

Please launch the Console application in any one of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

The title of the Console window should be All Messages. If it isn't, select

          SYSTEM LOG QUERIES ▹ All Messages

from the log list on the left. If you don't see that list, select

          View ▹ Show Log List

from the menu bar at the top of the screen.

Click the Clear Display icon in the toolbar. Then take an action that isn't working the way you expect. Select any lines that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.

The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Some private information, such as your name or email address, may appear in the log. Anonymize before posting.

When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

If you have an account on Pastebin, please don't select Private from the Paste Exposure menu on the page, because then no one but you will be able to see it.

Please remove the Trend Micro product by following the instructions on this page. Restart. If the program was incompletely removed, reinstall it and start over.

Back up all data before making any changes. Never install any "anti-virus" or "anti-malware" product again.

Please back up all data.

Quit FaceTime if it’s running. Force quit if necessary. After each of the following steps, restart the computer and test. If the problem isn't resolved, quit again and go on to the next step.

Step 1

If you synchronize Contacts with a network service such as iCloud or Google, disable that synchronization in the iCloud or Internet Accounts pane of System Preferences. When prompted to confirm, choose to delete the contacts from the Mac. They'll still be on the servers and on your other devices. Leave the preference pane open.

If FaceTime works now, re-enable Contacts synchronization, wait for the network contacts to reappear, and see what happens.

Step 2

Make sure you know the ID and password you use with FaceTime.

Launch the Keychain Access application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

Select the login keychain from the list on the left side of the Keychain Access window. If your default keychain has a different name, select that.

If the lock icon in the top left corner of the window shows that the keychain is locked, click to unlock it. You'll be prompted for the keychain password, which is the same as your login password, unless you've changed it.

From the menu bar, select

          Keychain Access ▹ Keychain First Aid

from the menu bar and repair the keychain.

From the Category list in the lower left corner of the window, select

           My Certificates

Look carefully at the list of certificates in the right side of the window. If any of them is marked with a red "X" as expired or invalid, delete it.

Now select

          Keychain Access ▹ Preferences... ▹ Certificates

There are three menus in the window. Change the selection in the top two to Best attempt, and in the bottom one to  CRL.

Next, select

            Passwords

in the Category list. Enter "ids" (without the quotes) in the search box in the toolbar of the window. Delete all items of type "application password" that have a name beginning in any of the following ways:

            ids:

            IDS:

            com.apple.ids:

Also find and delete all items with "facetime" or "com.apple.idms" in the name.

Quit Keychain Access.

Step 3

Hold down the option key and select

          Go ▹ Library

from the Finder menu bar. Move the following items from the Library folder to the Trash (some may not exist):

          Application Support/CallHistoryDB

          Caches/com.apple.imfoundation.IMRemoteURLConnectionAgent

          Containers/com.apple.AddressBook.FaceTimeService

          Containers/com.apple.corerecents.recentsd

          Containers/com.apple.FaceTime

          Containers/com.apple.soagent

          IdentityServices

Leave the Library folder open.

Step 4

In the Preferences subfolder, there may be several files having names that begin with one of the following strings:

          com.apple.facetime

          com.apple.FaceTime

          com.apple.ids

          com.apple.imagent

          com.apple.imservice

Move them all to the Trash.

Also in the Preferences folder, there is a subfolder named "ByHost". Open it and do the same thing.