Unknown error 11503

For the past several weeks I have been unable to download content from itunes.Unknown error number 11503 pops up after a purcahsed download starts and does not allow the completion of the download.I have the latest version of itunes and I was wondering if anyone else has had this problem and what the fix was. Thanks.
Windows XP

Also the pop up says that the error is in the itunes store.
Windows XP

Similar Messages

Error 11503 Cannot purchase unknown???

I have never had trouble purchasing music until tonight. When I try to purchase any music I get the error Cannot purchase unknown, error 11503. Anyone have any solutions? I have Windows XP.
Thanks

Are you able to download the Tuesday free song?
Are you using 1-click or shopping cart?
http://docs.info.apple.com/article.html?artnum=93708

Getting unknown error when trying to make a purchase

Hello All,
Whenever I attempt to make a purchase for a song or a video/TV show I get an unknown error. Does anyone know why? I did restart my computer and all.
Thanks for any help.

It says Unknown Error (11503). Someone please help.

Error 11503: What does this mean?

I purchased an Itunes music card and when i tried to download the songs it gives me an error 11503. Could not purchase unknown. unknown error occured. There was an error in the music store, please try again later. Well i have tried again later and it's still not downloading. Any help would be nice. Thanks

Did you cancel your AOL account? That 11503 number is usually associated with AOL accounts that didn't convert to AppleIDs correctly.
Also make sure you have the latest iTunes
http://www.apple.com/itunes/download/

Error 11503

I have tried several times today to purchase albums and I keep getting an error that says:
"Could not purchase "unknown". An unknown error occurred (11503). There was an error in the Music Store. Please try again later."
What is this error and how do I fix the problem? I updated the ITunes software already but that did not fix the problem.
My anti-virus and firewall were also disabled at the time of download so that could not be the problem either.
Any help is greatly appreciated.

tried. didn't work. still get 11503 error and couldn't download free song. any idea how to get a response from itunes regarding this matter? it's been going on for nearly a month and my money is tantalizingly showing up in my account and not being able to access it is exceedingly frustrating. i know it's not a cookies or date/time setting issue since i successfully set up a regular apple id linked to my credit card and have purchased music. it seems to me that itunes ought to be a bit more responsive to its customers who have issues like mine. just a gentle suggestion, of course. thanks, as always, for your attempts to help. i still have not received a response from itunes engineering and was told that would happen earlier in the week. is there any recourse for customers like me??? amy r.

ITunes error 11503

Every time I try to purchase a song (any song) I get an error message saying: Could not purchase "Unknown". An unknown error occurred (11503). There was an error in the Music Store. Apple support told me to try again later, but this has happened for 4 days in a row now. Any ideas? Thanks.

HT201263 my iphone 4 went into recovery mode & will not restore. Unknown error 21 comes up on iTunes. Please can someone offer any ideas for a solution?

I have an iphone 4 nearly 2 yrs old. It has worked perfectly for that time. On Friday last (whilst away on holiday) I took the phone out of my pocket & it was lifeless. I tried switching it on, no joy, I tried the power/home button reset no joy. I plugged it into a mains charger & it came on but had a banner across the screen saying "verification required". I removed the charger & decided I would try again when I got home so I could connect to my PC & iTunes.
At home I went through the whole above process again but when I plugged it into the mains again it just had the Apple logo going on/off repeatedly. I plugged the phone into my PC & the apple logo appeared followed by the "connect to iTunes". In iTunes I get the banner "iTunes has detected an iPhone in recovery mode. You must restore this iPhone before it can be used with iTunes". So I click on "OK" the "Restore" then a banner asking if I'm sure I want to restopre the iPhone appears, press "Restore & Update". iTunes starts to remove the software, veryfies it with Apple & then another flag "The iPhone could not be restored. An unknown error occurred (21) which appears to be a security issue.
I thought the above problem was something to do with O2 because I picked up my new iPhone 4S last Tuesday but was unable to set it up until I got back from my holiday, O2 say it isn't anything they've done.
My question is has it happened to anyone & can anybody offer a solution, is it a hardware or software issue?

Please see the two articles below:
http://support.apple.com/kb/TS3694
http://support.apple.com/kb/TS3125

Unknown Error during Recovery - iPad no longer Recognized by iTunes

I have a 3rd Generation iPad which I was attempting to perform a factory reset. I received an "Unknown Error" during the process and from that point on I have been unable to get iTunes to recognize my iPad in recovery mode (or otherwise).
I have tried every thread on the subject, but I found one interesting thing. If I connect the iPad with the same cable, etc. to another computer it immediately recognizes it in recovery mode and offers to restore the iPad.
It seems like my computer is not recognizing the iPad because it was in the process of restoring the device when the error occurred. Does anyone know if there is a way to reset or fix this issue. I would prefer not to update iTunes and download both the new iTunes and iPad software again and use another computer if it is not necessary.
Any help would be appreciated.
Thanks

Hey KSHItunes,
That was a good test to try your iPad on another computer. It does seem to isolate the issue to something with your computer setup.
Although you would prefer not to update iTunes, there may be steps in this article which can help.
iPhone, iPad, or iPod not recognized in iTunes for Windows - Apple Support
Please check it out.
Regards,
Nubz

Once i updated the IOS on my ipod touch itunes can no longer connect to it and gives an unknown error

I just updated ios to 5.1.1 and now i ccan not connect to itunes with it. It gives me an unknown error. Was not able to restore from back up due to this?

And what is the complete wording of the error message?

Ipod no longer authorized (unknown error -42408)

posted this at itunes site as well.
out of blue, having problem i've never had syncing my 60G ipod.
for years have been syncing this ipod with my itunes on my macbook (only). for the past few times (?month or so), i'm getting an error message when i try to sync that first says, the ipod/macbook is not authorized for this ipod (which it always has been).
then it asks me if i want to authorize it. when i hit "authorize", it brings up an old itunes account i had and asks me for the old password, which i enter. then i get an error message that says:
"unknown error -42408. error in itunes store. please try again later."
how do i fix this so that i don't get this error message and can continue syncing with my most recent account, which has NEVER been a problem in the past?
thanks.

I have exactly the same problem. My iPod is a 30GB one from 2005 or 2006 (I don't know how to identify its category). When it was new, I had a PC; then a year and a half ago I switched to a Mac and got everything transferred ok, and have been synching the iPod to the Mac with no trouble since then. (Well, slight trouble, because the iPod is now very full, and I haven't figured out the best way to synch "almost everything", but so far I'm managing somehow.) But just before leaving Moscow March 10, I wanted to synch and recharge the iPod, and got the same problem, with the same sequence of messages described at the start of this thread. So I only recharged it. Now I'm in Amherst, tried again, exact same problem. So now only recharging again.
Same computer, same iPod, why does it suddenly not recognize that this computer is authorized to synch this iPod, and why does it make this error when I tell it to authorize it? And how can I fix it?
Grateful for any help.
Barbara

Hello all .. i have a big problem in my ipad version 5.1.1 that is when i connect the ipad with my computer the i tunes give me this message ( itunes couldnt connect to this ipad .an unknown error occurred (0xE8000012).) how i can solve this problem pleas

hello all .. i have a big problem in my ipad version 5.1.1 that is when i connect the ipad with my computer the i tunes give me this message ( itunes couldnt connect to this ipad .an unknown error occurred (0xE8000012).) how i can solve this problem please
and this is an pic for the problem

There is some troubleshooting for 0xE8 error codes on this page : http://support.apple.com/kb/TS3221 - you could see if anything on that page fixes it

Tried to update my iPad OS from iTunes. Frozen and got an "unknown error msg". I tried to restore the iPad to factory settings..got the same

I bought today a new iPad from Rideau Store. The setup guys didn't update to latest software version. I tried to do myself trough iTunes, which notify me that an upgrade is available. After a while the upgrading process froze with a msg "unknown error ..". I clicked on the More info button and I got a page saying "due to a scheduled upgrade of Apple's support system some feature are not available.
The bottom line is that now the iTunes does detect the iPad being in recovering mode and asks to restore it to fabrics defaults. I tried to do this and again I got aqn "unknown error"
Finally I run the iTunes diagnostics to check the connectivity between my iPad and my HP laptop (iTunes). For unknown reson the iTunes does not detect my iPad. See below the diagnostics log:
Itunes Diagnostics
MicrosoftWindows XP Professional Service Pack 3 (Build 2600)
Hewlett-PackardPavilion dv5000 (EP416UA#ABA)
iTunes10.2.2.12
QuickTime 7.6.9
FairPlay1.11.17
AppleApplication Support 1.5.1
iPod UpdaterLibrary 10.0d2
CD Driver2.2.0.1
CD Driver DLL2.1.1.1
Apple MobileDevice 3.4.0.25
Apple MobileDevice Driver 1.55.0.0
Bonjour 2.0.5.0(214.3)
Gracenote SDK1.8.2.457
GracenoteMusicID 1.8.2.89
GracenoteSubmit 1.8.2.123
Gracenote DSP1.8.2.34
iTunes SerialNumber 0012AD0812DA2D38
Current user isan administrator.
The currentlocal date and time is 2011-04-20 20:32:27.
iTunes is notrunning in safe mode.
WebKitaccelerated compositing is enabled.
HDCP is notsupported.
Core Media issupported.
Video DisplayInformation
ATI MOBILITYRADEON Xpress 200 Series
**** ExternalPlug-ins Information ****
No externalplug-ins installed.
Genius ID:cb0eaa5cad8a753f64335065bc061263
**** DeviceConnectivity Tests ****
iPodService10.2.2.12 is currently running.
iTunesHelper10.2.2.12 is currently running.
Apple MobileDevice service 3.3.0.0 is currently running.
UniversalSerial Bus Controllers:
StandardEnhanced PCI to USB Host Controller. Device is working properly.
StandardOpenHCD USB Host Controller. Device isworking properly.
StandardOpenHCD USB Host Controller. Device isworking properly.
No FireWire(IEEE 1394) Host Controller found.
Most RecentDevices Not Currently Connected:
iPad runningfirmware version 4.3.1
Serial Number:        DLXFK2A8DKPH
**** DeviceSync Tests ****
No iPod, iPhone, or iPad found.

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar
Also, do you remember what the error message said?

How can you get your music synced from iTunes to your iPod when a window pop ups on the screen saying"The iPod "Edward's iPod" cannot be synced. An unknown error occured (13019))?

I had 429 songs already on my iPod Touch. When I was in the process of syncing a song from my iTunes Library on to my iPod, a window popped up on the screen saying, ""The iPod "Edward's iPod" cannot be synced. An unknown error occured (13019)). I click "Device" on my iTunes Library to make sure the song was in my iPod. It showed the song that was recently synced now listed under "Device", but when I physically looked for the song on my iPod Touch, it does not appear on there at all. It all started when I decided to put a Playlist I created in the iTunes Library and transferred it on to my iPod. Do you know why it may affected my syncing process and is there any way where I could get the syncing function back to normal so that I can continue adding songs on my iPod? Thank you for listening. P.S. My iPod iOS version is 4.3.5.
Message was edited by: edwardwashere

Try here:
iTunes: Error 13019 during sync

My 10.8.3 update did not install properly citing an 'Unknown Error'. Now, my Mail and Mac App Store aren't working. What went wrong and how do i fix it ?

My 10.8.3 update did not install properly citing an 'Unknown Error'. Now, my Mail and Mac App Store aren't working. What went wrong and how do i fix it ?

I tried this and still have the same problems. If I open Address book or the Mac App Store I get the library rebuild popup and a hang. I created a fresh user and then things are better apart from the printing issue. Its clearly some 3rd party software issue but the crash logs are meningless to me. I used the excellent Etre check app from http://www.etresoft.com/etrecheck so I have a list of what is being loaded and can compare clean and crashed user info but as I cant work out which of the startup items, launch agents, launch daemons etc that are causing the problem.
I have eliminated Dropbox, Mac Keeper and Witness, and it isnt related to my exterrnal LED cinema dispay or my external thunderbolt drives, or any USB devices if thats any help to anyone else. Info from Etrecheck follows -
Kernel Extensions:
          com.oxsemi.driver.OxsemiDeviceType00          Version: 1.28.7
          com.rogueamoeba.InstantOn          Version: 6.0.2
          com.rogueamoeba.InstantOnCore          Version: 6.0.2
          com.Cycling74.driver.Soundflower          Version: 1.5.3
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
             [not loaded] com.adobe.fpsaud.plist
             [not loaded] com.adobe.SwitchBoard.plist
             [not loaded] com.bombich.ccc.plist
             [not loaded] com.dymo.pnpd.plist
             [not loaded] com.intego.BackupManagerPro.daemon.plist
             [not loaded] com.micromat.TechToolProDaemon.plist
             [not loaded] com.microsoft.office.licensing.helper.plist
             [not loaded] com.orbicule.witnessd.plist
             [not loaded] com.sierrawireless.SwitchTool.plist
             [not loaded] com.stclairsoft.AppTamerAgent.plist
             [not loaded] org.macosforge.xquartz.privileged_startx.plist
             [not loaded]          pcloudd.plist
Launch Agents:
                 [loaded] com.divx.dms.agent.plist
                 [loaded] com.divx.update.agent.plist
                 [loaded] com.epson.epw.agent.plist
                 [loaded] com.lacie.raidmonitor.daemon.plist
                 [loaded] com.lacie.safemanager.daemon.plist
                 [loaded] com.micromat.TechToolProAgent.plist
                 [loaded] com.orbicule.WitnessUserAgent.plist
                 [loaded] org.macosforge.xquartz.startx.plist
User Launch Agents:
             [not loaded]          .DS_Store
                 [loaded] com.adobe.AAM.Updater-1.0.plist
                 [loaded] com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist
                 [loaded] com.digitalrebellion.SoftwareUpdateAutoCheck.plist
                 [loaded] com.divx.agent.postinstall.plist
                 [loaded] com.google.keystone.agent.plist
                 [loaded] com.propaganda.dejavu.dvmonitor.plist
                 [loaded] com.valvesoftware.steamclean.plist
                 [loaded] com.zeobit.MacKeeper.Helper.plist
User Login Items:
          iTunesHelper
          Synergy
          TomTomHOMERunner
          Dropbox
3rd Party Preference Panes:
          Déjà Vu
          Flash Player
          Flip4Mac WMV
          GR-55
          Paragon NTFS for Mac ® OS X
          Perian
          Printopia
          TechTool Protection
          Witness

In Google Scholar, the "Import to EndNote" now gives an error: "Download Error ... an unknown error occurred."

In Google Scholar, the "Import to EndNote" link now generates an error
=========
Download Error
<<Filepath>> could not be opened, because an unknown error occurred.
Try saving to disk first and then opening the file.
=========
Screenshot here - www.imgur.com/K8kqd.jpg
MAC OSX Version 10.7.5
FireFox Version 17.0.1
EndNote Version X6
Google Chrome does not have any issues and Safari at least downloads the file to be manually opened.
Any ideas?

Error 1611: This error may indicate a hardware issue with your device. Follow the steps in this article. Alsoattempt to restore while connected with a known-good 30-pin Dock Connector cable, computer, and network to isolate this issue to the device. The MAC address being missing or the IMEI being the default value (00 499901 064000 0) can also confirm a hardware issue. Out-of-date or incorrectly configured proxy or security software, such as FoxyProxy, can cause error 1611. To troubleshoot third-party security software, follow these steps.
Above from:
http://support.apple.com/kb/TS3694

Unknown error 11503

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