icloud server not responding back to my mac

Tried your suggestions (all excellent ideas, btw) but I am having no success getting Back to My Mac to work.

So far I have tried deleting the aforementioned certificates and keychain files, and logging out of iCloud and logging back in.

Any other suggestions as to what to try? Don't understand this one at all.

Thanks!

Tony

This worked very well for me. Thank you very much. Apple should put this on their knowledge base (since their suggestions don't work at all). Kudos.

Thank you, fixed the problem

RESPECT! It work perfectly! Thanks!

This worked for me as well. You rock, my friend. I'd never have thought of this.

Thanks for taking the time to post that. I was going about that the wrong way until I found your post.

Dude, yu are a GENIUS! Thanks, helped me too!

Perfect...that was the solution!

I'm having the same problem. I went to the Keychain Access app, but I do not see any "Back To My Mac" items listed in the "kind" column. I have selected "All Items" in the category column. Any ideas?

In Keychain Access, when I do a search in the upper right for "apple" there are some keys and certificates with "Apple ID" in the name, but not specifically Back to My Mac. Looking at their Access Control tabs, these keys are used by AppleIDAuthAgent - the Apple ID authentication core service - as well as some other processes. For those still having trouble logging in, perhaps these items are also gumming up the works. If you delete them, I'd advise backing them up first by choosing File->Export Items just in case I'm horribly wrong and you need to import them again later. I'm sorry I can't be as helpful with this, as the original problem behavior has gone away in my case and I can't reproduce it to test.

Please, I still can`t login to Icloud on system preferences, even login in normally in the icloud.com, and itunes and appstore.. I have deleted the keys and can't import then back again.. I REALLY need Help.. could you tell me something.. :-(

Maybe poke around in ~/Library/Application Support/iCloud?

I have an Accounts folder in there, which contains a file with a numerical filename, and an alias to it whose filename is my Apple ID email address. Maybe try signing out (if you're signed in), moving that file with the numerical filename, then trying to sign in again? Maybe that file contains something about our Apple ID as it pertains to logging into iCloud, and has been corrupted for you.

I'm grasping at straws, though.

worked for me, too, but a month later I have the same problem again, and this time THERE IS NO "BACK TO MY MAC" KEYCHAIN ITEM so I can't delete it.

I have keychain access open. System/all items.

And I still can't connect to my other mac at a remote location. Both running 10.7.4.

There may be an easier and better solution!

I have a situation where I have Mountain Lion on one machine and Lion on another. Deleting the Keychain items mentioned above did not help. Apple support asked me to run software update on the Lion machine. They said the flashback malware update and regular updates took care of some situations where Mountain Lion and Lion machines were not able to connect together.

Sure enough, after installing the update on the Lion machine and after turning off and turning back on Back to My Mac of the Mountain Lion, machine all works again.

Just a follow-up...Back To My Mac was working after the system updates...is very intermittant and slow now, again. With so many people haveing trouble with Mack To My Mac, it seems this is an Apple problem that they really need to fix.