Itunes error 400

about a week ago i was using the itunes store fine. now i cant get into the itunes store. i get a message that says "itunes could not connect to the itunes store. unknown error occurred (400). make sure your network connection is active, try again." apple gave me some pointers and insists its my settings. help!! im a rookie at this.

I am getting the exact same message. I was prompted to install the newest ITunes version 7.2 something. My itunes worked just fine until I installed this new version. I can still get into ITunes, just not the store. I've yet to hear from anyone how to help me through this. And it's not my computer. It's the newest version of ITunes.
Toshiba Windows XP

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Unknown error 400 when updating apps through iTunes.

I have been getting an error message 400 when trying to update apps from the app store on my macbook. I can only update them from my iphone. I am able to purchase and download the original apps as well as music and movies. Are there any fixes for this issue? I do not have this problem on my imac.
Thanks

I had the same problem and after a full day on the phone with Apple, there was no solution. Then, I tripped over it! The issue was with a third party program that was supposed to be allowing all traffic, but wasn't. The program is NetBarrier and once it was removed and my MacBook Pro was rebooted, all was great. The iMac wasn't affected (in my case) because I never installed that program on the iMac.
I blogged it here: http://www.wickedblog.com/2010/03/23/itunes-wont-update-apps-itunes-error-400/. I hope this helps others avoid hours of searching.

Error 400 when trying to sign in

hi,
i"m getting error 400 when trying to sign in the iTunes Music store. I'm using a free .mac (so not a full paying .mac acount) account to sign in.
anyone else seeing this error
marc
us store

Awesome! Thanks for the tip. I was having a similar issue with that error code amd deleting those cookies from Safari fixed it.

Error 400 when attempting to update Apps

Hi there. I have been getting an unknown error 400 whenever I try to update my apps. I can't find any information online about how to fix this. Does anybody have any ideas?
Thanks,
Cian

Try this.
Sign out of your account, restart the iPad and then sign in again.
Settings>iTunes & App Store>Apple ID. Tap your ID and sign out. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
Go back to Settings>iTunes & App Store>Sign in and then try to update again.
If you are not using iOS 6 go to Settings>Store>Apple ID.

Push Notifications Disabled (error 400)

I'm getting this error whenever I open my ESPN Streak for the Cash app. I've contacted ESPNs customer care and they are saying my error is an itunes/iphone issue.
The problem:
I purchased a separate service within the app to send me additional push notifications. When asked to enter my itunes password to confirm i did. This was actually the second account I tried doing this from and it worked on the first. I've heard that you should have separate itunes accounts for each iphone. I dont know if that was the issue or not, but I did create another itunes account and deleted the app and redownloaded and purchased the push notification service. I still get the error 400, but at least it says my subscription is pending now whereas it didn't register before, but still no pushes. I've also noticed for some of my other apps that i dont receive push notifications anymore. Chess with friends, facebook, email. It only bothers me because i'm paying an additional subscription service for the espn app and i cant receive push notificaitons.
the actual message reads: Push notifications are disabled or failed to initialize. (error 400: contact customer care)
I am also prompted to enter my itunes password everytime i open the app. I've also received (error 100: contact customer care)before. Don't know if any of this could be useful info. But that's pretty much all i know.

I don't know where your other reply went re: turning off push notifications and that this appears to be a problem for 4s users.
Anyway, thanks for the reboot suggestion, tried that as well. I will try to turn off push notifications and then turn back on to see if that makes a difference.

Error 400 when trying to sign-in to Adobe Photoshop 9 [was:Error]

Getting an Error 400 when trying to sign-in to Adobe Photoshop 9. What is the problem?

http://barbarabrundage.com/2013/09/16/pse-8-9-10-cant-sign-in-error-404/
Cheers,
Neale
Insanity is hereditary, you get it from your children
If this post or another user's post resolves the original issue, please mark the posts as correct and/or helpful accordingly. This helps other users with similar trouble get answers to their questions quicker. Thanks.

Error 400 when attempting to sign in . . .

to Photoshop.com
(Photoshop.com services are currently unavailable. Please try laer or check your network connections. Error 400)
I checked to be sure I had internet connection and that there was no firewall blockage - what else should I do (keep it simple, please!).
I 'tried again' several times over a period of time - no change.
Also, haven't been able to find a phone number for support - any help here?
Thanks for any help you can offer!

You might want to cross post this in the photoshop.com forum, too:
http://forums.adobe.com/community/photoshopdotcom
The photoshop.com employees keep a fairly close eye on that forum, so hopefully you'll find someone there who knows what the problem is.

ITunes error message - "video format is not supported by the iPad" My video is mp4, mpeg-4.

When syncing my iPad 2.... Why do I get this iTunes error message? "video format is not supported by the iPad"
My video is mp4, another is mpeg-4.
I thought the iPad 2 could play almost any format.

Must conform to these specs:
Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
Or download an alternate video player,such as avplayerhd.

ITunes error 7 (windows 127) VideoToolbox.dll

I have uninstalled, reinstalled, tried installing the videotoolbox.dll file seperately, and looked up just about everything i can find but nothing matches my exact problem or fixes it. When I try to open itunes i get 2 error messages. The first reads:
"The procedure entry point kVTCompressionPropertyKey_ThrottleForBackground could not be located in the dynamic link library VideoToolbox.dll"
After I click ok I get another pop up saying:
"iTunes was not installed correctly. Please reinstall iTunes
Error 7 (Windows error 127)"
Can anyone help me fix this?
Thank you
P.S. I am running Windows 7 64-bit

See iTunes launch errors caused by iAdCore.dll.
Review the rest of the user tip if required.
tt2

Itunes error

when i try and open itunes on my laptop i keep getting the error message Itunes new library and it wont let me open it. I've tried repairing it on control panel and i've also tried installing a newer version. Nothing works.
Any ideas?
Cheers

Well, I've been the victim of curious and unsolveable iTunes errors, too, but not the same as what you describe. I suspect it had something to do with updating my computer with an external drive/iPod mounted. Or it was just one of those funny little bugs from Apple. You might try backing up, repairing permissions, repairing the start-up volume, and resetting the PRAM.
And if that doesn't work or you already tried that, well... Have a good one!
That's a quote from my favorite cancelled cartoon show, Futurama. Bender says that to Zap Branegan as he is about to get pulled out a breech in the hull into the infinity of space. Seems like it may apply to your situation, too.....

I click on a link inside an email and it won't open so I can print the coupon, response is http error 400 or I have it blocked. Others in my area aren't having any problems with the same link opening but they are using IE. What's up with Firefox?

gohollywood.com, register, message came back from Hollywood Insider with a link to click on to "Download Coupon". Click on link and you should get the coupon and you print it out. All my friends have done it but I can't. I get various error messages including : "HTTP error 400 - the request is badly formed".... or you have a blocker set.....
Unless it is a Gmail/Firefox blocker or firewall, I don't have anything set up as a blocker on my email. Had a few friends go in my account on their computers and they had the same thing happen. However when they go in under their names they get to the link with no problems. HELP.

Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
You can use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

How to fix itunes error 1611 while restoring ios 4.3.2 , and when i restore to 4.2.1 the can be ok.plz help me

how to fix itunes error 1611 while restoring ios 4.3.2 , and when i restore to 4.2.1 the can be ok.plz help me

have a look at this support article.

Error while configuring GCM: The push settings were not saved. Error 400

Hi,
While configuring push settings for google cloud messaging in azure mobile services, i entered the server key received from google developer console.
When i try to save the entry, i get the message The push settings were not saved <mobile-serversices-site>: Error 400
I have regenerated the key multiple times but of no use.
Am I missing something? I am a paid subscriber of Azure
Thanks, Laks.

Sorry for the late reply. Sometimes there are transient errors in the portal that affect whether or not the settings can be saved. Also, you should make sure that you have an associated notification hub (which will show up in your push settings). If there
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Error message is 'The Request Error : 400' with SAP Download Manager

Hello,
The authorization object SWDOWNLOAD (download software) is assigned to the My user ID.
But I could not download below that file.
SAP_ABA 710 (4~8)
SAP_BASIS 710 (4~8)
PI_BASIS 2006_1_710 (4~8)
SAP_BW 710 (4~8)
Error message is 'The Request Error : 400' with SAP Download Manager
I logged on to SAP Service Marketplace, software download area /swdc.
I have created objects in the download basket and have received approvals (->Maintenance-Optimizer) where required.
I start the SAP Download Manager and the objects from the download basket are visible in the object list of the program window.
After I choose "Objects for Download", the system starts the download.
In the info-line (in the lower part of the window), the system displays the message 'Processing object...' and then 'The request failed: 400'.

Hello,
In these cases the following things should be checked:
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2.- S-User and password should be active
3.- Specify the proxy. Please refer to SAP Note 155954
4.- It might be that you are not licensed for the product you want to download.
If the checkings above are correct and the problem is still alive, I would recommend you to open an SAP customer message under component XX-SER-SAPSMP-SDM providing the following information:
1.- The exactly software product name and package or stack number you try to download.
2.- Attach to the message the results of the trace file generated as per note 574885:
574885 - Download Manager: Generate trace file for analysis
I hope this helps you.
Regards,
Blanca

ITunes update shows runtime error R6034/iTunes error 7/Windows error 1114. iTunes tells me to reinstall but I've uninstalled/restalled and get same error messages.

After iTunes update I see this - Runtime error R6034 "application has made an attempt to load the C runtime library incorrectly". ThenUninstalled then I also get iTunes was not installed correctly. Please reinstall iTunes error 7 (Windows error 1114). I've tried fixes for runtime but computer says there are no errors. I've uninstalled/reinstalled iTunes and get all the above messages. Now when I start up my computer the runtime error pops up, but once it is closed computer works fine until I try to open iTunes. I've even tried a system restore going back to November. I use iTunes for audiobooks on iPod and I'm going to get desperate soon. Any suggestion?

Follow the instructions of tt2 in: https://discussions.apple.com/thread/5822086

Itunes error 400

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