You can't sign in at this time

I had the same problem until 5 minutes ago. It turned to be that Little Snitch was blocking the connection. If you use this software or something similar, try turning it off from its Preferences panel. Hope it helps 😉

I don't really know, I have been getting this message since Wednesday and yesterday I came up with the idea that it should not be a problem with Apple, since the error message popped up almost instantaneously always... Have you got any firewall, or any other similar app which could be interfering your connections?

P.D.: I have just received a similar error message when trying to install SugarSync. Guess who was the responsible...

I don't have little snitch, however I still see this problem. My Console does show: "Failed to store key, couldn't add kc item, error -25308"

EricAnderson, there seems to be a problem with you Keychain. Try this:

http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh1777.html

I think I may have found a solution for this.

1. Quit all running programs including System Preferenes.

2. Go to /Users/(Your Username)/Library/Application Support from the Finder>Go>Go to folder menu.

3. Rename the folder 'iCloud' to 'iCloud OLD' (this is effectively removing it from the system but retaining it on disc in case you need it back)

4. Run System Prefereneces

5. Try signing into iCloud again.

It worked for me!

(Lion created a replacement iCloud folder in /Users/(Your Username)/Library/Application Support)

Let me know if this works for you!

I think I've found a solution:

1. Quit all programs including System Preferences.

2 Go to /Users/indie/Library/Application Support using the Finder's Go>Go To folder menu item.

3. Rename the folder 'iCloud' to 'iCloud old'

This may have fixed the problem.

(Renaming rather than deleting the old folder just means you can get it back again if you want it.)

Let me know how this works for you!

Sorry guys. My first reply allegedly failed so I retyped it from memory. Now I see BOTH appeared! And I can't see how to delete the duplicate!

Didn't work for me. But I have the same Problem.

Cannot login to iCloud from my mac. iPod is working. And I have in my konsole continousliy following error message:

Oct 20 20:10:44 veits-mac-mini com.apple.launchd.peruser.501[124] (com.apple.ubd[991]): Exited with code: 254

Oct 20 20:10:48 veits-mac-mini ubd[992]: SecKeyCreatePair returned 100013

and securityid process is running with 90%.

Do not have little snitch or any other firewall running.

After long research I found that my problem was related to not trustet Apple certificates in the keychain.

Look for com.apple.ubiquity... and trust the not trusted ones. After this I was able to sign into iCloud and the securityid process went to normal.

I don't know if there's a reason the certificates are not trusted? Really strange.

Well done! I'm glad that worked for you.

I've never really fully understood how the certificates work.

Do you know if it's safe just to delete a certificate (rather than just approve a 'non-trusted' one which sounds a little dangerous to me....) and whether doing so re-creates (and hopefully is then trusted) that certificate?

Deleting didn't do it. Nothing was recreated. But it seems I can set it to untrusted after signing in to iCloud. Do you have them in your keychain?

Interesting!

I DO have three ubiquity certificates .. ALL of which expired a few days ago.

But I have no problems since removing /Users/{user}/Library/Application Support/iCloud !

That worked like a charm thanks for the tip!