Unable to load from sync services

after upgrading to newest version of itunes, my iphone4 and ipad wont sync. I get the message about not being able to load from sync services. any suggestions?

Many thanks.
I don't usually associate the Windows Live LSPs with a LSP conflict, but I guess we'd better check.
Let's try wicless instructions from the following post. (This contains the netsh winsock reset instructions, which will return the Winsock key settings to their defaults, and clear away any LSP conflict or incidental damage in there.)
TS1967 Re: after upgrading itunes to 10.6.1.7 i can't connect to store. What do I need to do?
Does that help with the sync service message (and other symptoms)?

Similar Messages

ITunes says iTunes was unable to load data sync services.

I am unable to sync my new iPhone 5 to iTunes. When I plug it in an error pops up and says iTunes was unable to load data sync services.

Hey tbestsr,
Welcome to the Apple Support Communities. I found an article based on the alert that you cannot load the data sync service. In this article it will give troubleshooting steps to help resolve it.
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert
http://support.apple.com/kb/ts2690
Regards,
-Norm G.

When I connect my iTouch to my PC (windows 7) an error message is displayed reading "iTunes was unable to load dataclass information from sync services. Reconnect or try again later".

When I connect my iTouch to my PC (windows 7) an error message is displayed reading "iTunes was unable to load dataclass information from sync services. Reconnect or try again later". I have completely uninstalled and then reinstalled iTunes. I have also completely reset my iTouch to factory defaults. I have even followed all the advice provided previously to other forum member with the same problem. Nothing seems to work. Please help me someone.

I'm getting the same problem with both my IPad 4 and iPhone 5
Just started a few weeks back, Since then I have had two Itunes updates.
Is this something Apple is aware of and trying to fix?

Error on Desktop: iTunes unable to load data class information from sync services.

Error on Desktop; iTunes unable to load data class information from sync services.

Hi there Randall112,
You may find the troubleshooting steps in the article below helpful.
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert
http://support.apple.com/kb/ts2690
-Griff W.

ITunes was unable to load dataclass information from Sync Services

Hi,
I have Iphone 3GS with the latest version 3.1.3 and iTunes 9.1. After i uograded my iPhone to the latest version i am not able to sync with the iTunes and receive the message "iTunes was unable to load dataclass information from Sync Services, Reconnect or Try later". I am using Windows XP with Symantec Endpoint protection.
I have tried following steps to troubleshoot the problem but all my attempts have failed,
1. Uninstall iTunes by Removing, iTunes, QuickTime, BonJour, iPhone congiguration Utility and Bonjour. Remove all the iTunes and related folder from the C:/ drive
2. Restart the computer and intall the latest version of iTunes and Quicktime
3. Restore the iPhone to the factory settings using iTunes
4. Restart the system as well as hard Boot the iPhone (Hold Start and Wake/Sleep Button)before connecting again
5. Repeat the Steps 1 and 2 after restoring the iPhone
I am still getting the same error and now I can't even open the first page for iPhone in iTunes when I connect it to my computer. All my content is still in iTunes but everything is lost on the iPhone.
I searched the Apple support and they talk about problem with the Symantec Endpoint. I have the latest version of Symantec endpoint way above what is mentioned on the Apple support page.
Can someone please help me, it seems restore worked for most of the people facing this issue, but for me even restore is not working.
With Regards,
Ankur

I got a present of an itouch. This is my first time back to apple after 5 years. I cant get my itouch to sync due to dataclass error on Windows XP pro. I have installed the latest version of itunes 9.2.1.
WHAT IS THE POINT IN OWNING A DEVICE FOR PLAYING MUSIC WHEN YOU CANT LOAD THE MUSIC !!!!!
Does anyone have a solution or alternatively (shock horror) Apple could actually get its AR*E in gear and fix the problem. I would also suggest that Apple would post a friggen solution on its website, but no that may be too much to ask.
very frustrated. any help gratefully received otherwise the touch gets thrown out.
thanks

TS2529 iTunes was unable to load data class information from Sync Services. Reconnect or try again later is the error message I am getting when i connect my iphone 4 to my windows based computer. Any help out there?

iTunes was unable to load data class information from Sync Services. Reconnect or try again later. This is the message when I try to connect my iphone 4 to my computer. If anyone could help me with this, I would appreciate it.

iOS: Device not recognized in iTunes for Windows
http://support.apple.com/kb/TS1538
iOS: Device not recognized in iTunes for Mac OS X
http://support.apple.com/kb/ts1591

Was unable to load data class info from sync services. try again later.

Since installing the latest version of itunes (11.1.5.5) whenever I have either mine or my wife's iphones (4 and 5c, both with the latest 7.1.1) turned on and I start iTunes, I receive the error message saying that itunes was unable to load data class info from sync services. try again later.
If I leave the phones turned off and open iTunes, I am able to sync my old ipod so it appears to be an issue with the software on the phones?
I'm just not sure where to start. I've made sure that itunes has the latest version and no more updates are available.
Thanks in advance,
jamey8420

this is on a windows 7 machine, btw.

ITunes was unable to load dataclass information from Sync Services-Solution

Hello all. I recently upgraded to iTunes 9.1.1.12 on a laptop with Windows XP Pro and the latest iPhone OS (as of May 16,2010). Right after that, I started getting the "iTunes was unable to load dataclass information from Sync Services" error message. After I dismissed that window, it would go ahead and indicate that it was synching for a minute or two, and then indicate (in iTunes) that it was backing up the iPhone. This will run forever unless cancelled and the phone would not synch.
After reading various solutions that worked for others (install Mobile Me, reinstall itunes, run diagnostics, all with numerous reboots in between), this is what worked for me:
1) Open up Windows Services, and stop the Apple Mobile Device and iPod Service, and mark them as manual (as opposed to Automatic).
2) Deinstall iTunes
3) Delete the c:\program files\common files\apple folder (and all sub folders within). This is where the services are stored, and when I did all of these steps without doing this step, it didn't fix my problem. By deleting this folder, you insure that the iTunes install reinstalls these. You should see the services that were stopped in step 1, running again after the install is done. Note: I don't use Safari or QuickTime on my laptop, so I can't say whether or not this step would have any impact on those apps.
4) Reinstall iTunes.
5) Connect the iphone to your computer.
6) At this point, I still got the dataclass error, so I immediately cancelled the synch.
7) Run the diagnostics for the iphone (connectivity and synch).
8) At this point, two DOS windows launched, and I did get another error about being able connect to the synch server.
9) Closed the error message and disconnected the iphone (the phone at this point did not indicate that a synch was occurring).
10) Reconnected the iphone and, voila, it's been working fine ever since.
Hope this helps someone else out until Apple deals with the 9.1.1.12 (and .11) issues with synching.

Either do Windows Control Panel → Administrative Tools and then picking "Services" or typing "Services.msc" in the Run command on Start menu.

ITunes was unable to load data class information from Sync Services. Reconnect or try again later.

Ever since I upgraded to iTunes 10.4 I've been getting this dreaded message on many occasions when I try to sync my iPhone 4 or iPad 2 with my Win 7 64 bit machine. "iTunes was unable to load data class information from Sync Services. Reconnect or try again later." What happens is that local content (music, videos etc) will sync properly to my iPhone, but other content (such as Outlook information, MobileMe stuff, etc) will not.
I have uninstalled and completely purged all Apple data from my PC (including hidden files and folders under Common Files and in the Registry) and reinstalled iTunes. Yet after one or two syncs, the same problem resurfaces. The other weird part is that the Sync Services crap-out message will happen after I do a successful sync, leave the iPhone connected to the PC, and don't even touch the computer for several hours.
I've actually developed a very tedious work around that seems to restore syncing if for a short time.
- Undock/unconnect all Apple devices from the PC.
- Close iTunes, MobileMe control panel, and Safari (if you have it).
- Start Task Manager (Ctrl + Alt + Del) and shut down iTunesHelper.exe and SyncServer.exe
- Open up a Windows Explorer window (like My Computer) and under Tools, Folder Options, View, toggle on Show Hidden Files and toggle off Hide Protected Operating System FIles
- In WIndows Explorer, navigate to "C:\Users\<your name>\App Data\Roaming\Apple Computer". Rename the folder Sync Services to something else, like Sync Services_Old.
- In WIndows Explorere, navigate to "C:\Program Files (x86)\Common Files\Apple\Mobile Device Support" and double-click on AppleSyncNotifier.exe.
- Go back to your Folder Options and turn off SHow Hidden Files and toggle on Hide Protected Operationg System Files
Now you can start up iTunes again and connect your device. It should sync properly again (at least, until it doesn't once more).
Does anyone at Apple have any idea about this error or a solution?

I actually spent a fair amount of time on the phone with a senior Apple tech last week. He directed me to this topic:
http://support.apple.com/kb/HT1923?viewlocale=en_US
It's important that you go through the steps EXACTLY as described here and in the proper order. Also make sure MobileMe control panel is uninstalled (if you have it).
Interestingly, when I went through this procedure and then reinstalled iTunes 10.4 64-bit (didn't do MobileMe or Safari at this stage, but QT is automatically installed) everything worked perfectly. The aforementioned error messages disappeared and all is working flawlessly, as it should.
I hope my expereince will help! Give it a try.

ITunes was unable to load data class information from sync services.

I get the error message "iTunes was unable to load data class information from sync services. Reconnect or try again later" after reinstalling iTunes. I cancel the message and iTunes proceeds to sync with my iPhone 4. The phone and iTunes software are the latest releases. My PC is running Windows 8.1, which had to be reinstalled after the system crashed, requiring a total reinstall of all software.

Doublechecking. You've tried the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

ITunes was unable to load provider data from Sync Services

Hello,
My itunes says : "iTunes was unable to load provider data from Sync Services", when i connect my iphones.
My iphones sync fine on my other computer.
This problem occurred when formatting my pc from work.
And this problem prevents me only sync tab "info" (contacts, calendar and Outlook). This does not prevent me to synchronize other tabs.
I already tried to reinstall itunes, and the diagnostic option.
Thanks in advance.

This problem has been ongoing since 9.2 came out ... i.e. quite some time.
I uninstalled and then removed all traces off Apple applications, then reinstalled back to the prior version and ran with no problems.
When I upgraded to V4 iPhone software I had to upgrade again and ran into the same problem.
Upgrading from Outlook 2000 to Outlook 2003 was of no benefit.
I have purchased Sync2, set up a gmail account and sync over wireless from Outlook to gamil, then from gamil to iPhone.
This only does calendar and contacts (haven't found a solution for notes) but waiting for Apple to sort this will probably see you old and gray.
Good luck.

Itunes was unable to load provider from sync services...

itunes was unable to load provider from sync services... and on top of that when i click on any apps i download it looks like its going to open for a split sec and then go back to where u click the apps in the menu. from what i read they are two different bugs but i havnt came across any fixes that work

Doublechecking ... you've also worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

Itunes was unable to load data class information from sync services.Reconnect and try again later.

when I open itunes I get message " itunes was unable to load data class information from sync services. reconnect or try again later "
I am unable to sync my ipad 2 or iphone 4 through itunes. I have tried all suggested options, removing itunes and related components from control panel + verified completely uninstalled from C program files + then reinstalling latest version of itunes (version 11.3.1.2). Also tried running itunes as administrator. Also tried reset sync history in itunes Also tried system restore on windows 7 from earlier period.Still get the same above message.
I run 64bit windows 7. Have recently renewed my Norton Intenet Security. Everything was OK up till then. Could this have anything to do with it.

A quick cursory browse seems to point that the problem is on Apples end since the last update of iTunes, theres loads of forum posts about it but Apple themselves arent responding as yet other then the usual "unplug, delete sync data, reconnect or completely uninstall iTunes" spiel which doesnt work so hopefully they will fix it sooner or later

ITunes 9.1 was unable to load dataclass information from Sync Services.

Everything was working perfectly fine on 9.0, then i upgraded to 9.1 version and my iPod Touch 3G stopped syncing properly (error as in subject). I tried many things, checked dll's, restarted services, everything without success. SO...
I uninstalled every single apple program and couple non applce. Deleted every Apple related file, even all those hidden in users/common files/app data folders. Double checked everything and restarted PC. THEN I downloaded full version of iTunes 9.1 64bit and installed.
Aaaand I restarted everything, lunched iTunes, plugged iPod in. Some Apple drivers installed themselves, then iTunes was frozen for couple minutes. Finally iPod shown in iTunes. I tried to sync and... BAM. Still broken, still same error "iTunes 9.1 was unable to load dataclass information from Sync Services. Reconnect or try again later"
Please help, my iPod is useless. Can u release new, working iTunes?

OK i have to say, i finally fixed it. Now its fully working without ANY problems, here is what i did (before trying this u should probably do this http://support.apple.com/kb/HT1923):
1. Unplug every external Card Reader.
2. Unplug every Card Reader in your PC (they are plugged into motherboard)
3. Unplug every USB Hub.
4. Unplug every USB Drive or USB HDD.
5. Plug in Ipod Touch/iPhone.
6. Go to Device Manager.
7. Search for "USB Mass Storage Device" in Universal Serial Bus Controler.
8. Right click on it and UNINSTALL.
9. Search for "Scan for hardware changes", click on it and wait a bit.
10. Turn on iTunes and check if its working.
Now it should work like a charm.

ITunes 10.5.3, Unable to Load Class Data from Sync Services, Crashes Repeatedly

Ever since iTunes 10.5.3 on my Windows 7 x64 box, I've been having serious problems keeping iTunes running:
1) Any time I connect my iPhone or iPad, or any time they attempt to sync over WiFi, I get the 'Unable to load class data from sync services' error. It's worth mention that the iPhone or iPad do actually then proceed to sync correctly, and all media / data is synchronized successfully, as far as I've been able to tell. I've reset sync history, restored the iPhone and iPad, manually moved the SyncServices directory, set both the iPhone and iPad up as new, completely uninstalled iTunes and the mobile device software, re-installed, and *nothing* I do fixes this issue or even seems to impact it. Uninstalling iTunes 10.5.3 and reinstalling iTunes 10.5.2 resolves this error.
2) iTunes 10.5.3 has serious crashing problems on my machine, though I've searched through forums and found a lot of other people with the problem. In my case, sporadically as iTunes access the iTunes store (for example, I can always make it happen by subscribing to the Diggnation podcast and telling it to refresh the podcast), I get a full application crash which generates the following event in the event log:
Faulting application name: iTunes.exe, version: 10.5.3.3, time stamp: 0x4f14cc3d
Faulting module name: KERNELBASE.dll, version: 6.1.7601.17651, time stamp: 0x4e211319
Exception code: 0x80000003
Fault offset: 0x0001280c
Faulting process id: 0x564
Faulting application start time: 0x01cce78789dc009a
Faulting application path: D:\Program Files (x86)\iTunes\iTunes.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: ecc77400-537a-11e1-b809-00248c196007
Again, uninstalling iTunes 10.5.3 and re-installing iTunes 10.5.2 fixes this issue as well, but I really shouldn't have to do that. Is there any actual solution to these problems other than dowgrading to an older version?
Yes, I'm running current malware protection (and my system is clean) and yes, I've already checked any other obvious culprits to make sure I don't just have a corrupt library or file somewhere that's causing it. My Windows 7 install is completely up to date from a Windows Update perspective and also from a driver perspective (even including the motherboard and chipset drivers). I made sure to do a system file integrity check (sfc /scannow) and it confirmed my install of Windows isn't suspect, but beyond all that I was able to reproduce these failures on a completely separate machine running Windows 7 x64, without any of my media library or data on it -- iTunes 10.5.3 just seems to be bad news on Windows 7 x64 for me, even though I know there are definitely people are using it successfully. I don't get any other application crashes for any other applications, and I've never had an issue like this with any previous version of iTunes...
Last but not least, in case it matters, I'm running iOS 5.0.1 on both the iPhone4 and the iPad2. The iPhone4 is the GSM AT&T model and the iPad2 is the CDMA Verizon model.

OK, I've given up. Uninstalled iTunes 10.5.3 permanently. It's a shame, 10.5.2 works perfectly but 10.5.3 is a complete and total cluster for me.
Anyone with the same problems who hasn't done this already, just uninstall iTunes and the Apple Mobile Device Service in your Add/Remove Programs, then re-install iTunes 10.5.2. You won't lose your library or any settings or apps, it will just go back to working again.
I wish Apple would acknowledge this so that I'd at least know it would be fixed in the future.

Unable to load from sync services

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