Q: What does message "iTunes was unable to load data class information from Sync Services.  Reconnect or try again later." mean?

I dont want to get involved in the debate of pros and cons of Trusteer Rapport.....

In an earlier post I thanked Keith for his brilliantly discovered solution:- which if, you're late to this discussion - is to completely uninstall Trusteer Rapport to get iTunes sync working again. I did that and all of my Apple devices are now syncing merrily away with iTunes on a Windows 8.1 PC.

I contacted Trusteer (IBM) support to report this terrible clash of programs  and let them know that Trusteer Rapport was causing problems. During chat I explained the issue and the solution and asked them how to get Trusteer Rapport working again without clobbering iTunes. The IBM tech support guy knew nothing about the problem and so I signed off and sent him a link to this discussion thread. He followed up with an email with some instructions on how to get Trusteer Rapport working with iTunes which I followed exactly and I can report that I now have iTune sync working ok and Trusteer Rapport back up and running.

I hope this works for anybody that wants Trusteer Rapport re-installed and working again.

Dear XXXX,

Following our chat conversation, we recommend you completely remove Rapport and re-install its latest version by following the instructions provided below:

1. Please confirm Rapport has been completely removed using the instructions in the following link: http://www.trusteer.com/support/remove-rapport-folders

Make sure you remove all of Rapport's folders as required. If some folders remain, you might experience trouble when trying to re-install Rapport.

1. Once the folders are deleted, please download Rapport's updated version and check if the issue you have been experiencing is resolved.

You can download Rapport's latest version here: http://www.trusteer.com/support/rapport-installation-links

Should the issue persist, please let us know.

Should you need additional assistance, feel free to contact us by submitting the following form: http://www.trusteer.com/support/submit-ticket

We also have helpful information available in our FAQ: http://www.trusteer.com/support/faq

Sincerely,

Exxxxxxxl P.

Tier 1 Support Representative

Trusteer Technical Support

Many thanks. I also contacted Trusteer yesterday - as part of the process of uninstalling this software I was offered an online tutorial and the possibility of providing feedback. They said a revised program would deal with the issue in due course. Your detailed response indicates they have pulled their finger out on this. I guess that at some stage I will re-install Rapport - but I am presently enjoying my PC running smoothly and much faster than with the previous Rapport installed.

There now seems to be no need to uninstall and reinstall Rapport.  Updating the software from the Trusteer Console fixes the problem.  On the Dashboard go to Product Settings - More Settings and then click Check for Updates Now.

Thanks. I reinstalled Rapport yesterday and all is well with its use and i-Tunes sync. I followed the full uninstall instructions as given by CriticalAngle. Glad to see that the procedure is now simplified. Trusteer (IBM)  does seem to have a good system for interacting with customers even though Rapport to date seems to have attracted some criticisms. Lets hope this is the beginning of an improved product. By the way - when I installed the Rapport update I was asked to identify the bank that I was primarily using this on. This step is easily missed and Rapport installs even if you don't do this. I'm not sure if this is important or just some information they desire. Once installed Rapport can be used (if you allow it to) on various non-banking sites too -such as Facebook.

Just re-installed Rapport using "latest level"

immediately slowed PC down, key responses etc

plugged in 5S  to iTunes and immediately content went to all "other",then over capacity

and hung ....................

Removed Rapport and immediately everything back to normal 5S showing correct status and syncing correctly as it did yesterday

I was surprised an update was produced that quickly ,even with IBM behind it ,seems not all is yet rosy in the garden

First of all a big Thank You to Keith for identifying the problem and to CriticalAngle for posting the steps to reinstall Trusteer Rapport.

As Peter is still having some issues, I thought I should let other users know that having followed the steps posted here, and on the Trusteer site (links helpfully provided by CriticalAngle), I now have sync working fine with a variety of iphones and ipads, and Trusteer protecting my online banking.

I have not noticed any degradation in PC performance. (However, the PC is fairly new with ASUS Z87 Pro, i7 4770, SSD, Win 8.1 etc)

Doesn't work for me, despite following all the instructions, deleting all folders & files, and purging the registry of all references to trusteer and rapport, reinstalling the latest version of Trusteer Endpoint still causes the error with iTunes.

So. the suggestion by Trusteer is still not a fix for all.

That is why I removed it again  and I do not believe the version on their site is any different to the one weeks ago so was not updated in response  this issue

If you have a premium Internet security package installed I am not convinced it brings anything new to the party

My Trusteer installation just silently updated itself from version 3.5.1307.109 to version 3.5.1403.67 and currently iTunes sync is working normally.

Perhaps this is the solution we all would like

Keith

cheers Keith,

but  not sure I can be bothered with it now , never have been convinced of its true benefit when I have  N.I.S.

Version on website is still 3.5.1307.109 - not updated to 3.5.1403.67 which appears to be an automatic update.

N.I.S is a generalist, does most things well enough, but maybe not good enough.

Trusteer is specific to online banking with specific rules, hence it messing up iTunes, which appears to have a API that Trusteer now thinks is a threat.

A few days ago my system started working correctly with both my iPod & iPad. I have not changed any of my software. It now shows I am running IBM Security Trusteer Rapport V1403.67. A big thank you to everybody for the helpful input on this problem.

Thanks for everyone's input here. As has already been advised this does seem to be a Rapport issue. My own experience has been slightly different in that I updated the Trusteer software to the latest level (1403.67) but the issue persisted. I then de-installed it and the Apple Sync worked successfully. I have now re-installed the product again (version 1307.109) and the Apple issue has been re-introduced. I have reported again to IBM.

Suspect IBM may be out of their comfort zone dealing with "users " normally many miles back from the front protected by Corporate IT Depts

In fairness Peter, I've had this reply following lodging a ticket this morning - "The issue you have reported is currently being investigated by our company

experts and we expect it to be resolved in a future release of Rapport." Perhaps this is a standard reply, but at least they have replied, unlike Apple who seem to still be putting forward a solution that is 3 years old.