Pdp authetication failure ios5

i have updated my 3gs to ios5 earlier, but since today morning i see this
error when accessing cellular data that ' pdp authentication failure'
tried reset network setting, restarted, and start+home button restart but same error
appears again..

Go to Settings, General, Network, 'On' Cellular Data, then go to 'Cellular Data Network'. In the space for APN, write Internet
Escape and your GPRS connection should work

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PDP AUTHETICATION FAILURE FOR IPAD

PDP AUTHETICATION FAILURE FOR IPAD for idea celluar network in andhra pradesh in India

Hi TVSRMURTHY,
I see you're having cellular network troubles. I found this article and it sounds like it would help with what you are describing:
iPad (Wi-Fi + Cellular Models): Troubleshooting a cellular data connection
http://support.apple.com/kb/TS4249
Step 4 states "Check for a carrier settings update." and links to "iOS: Updating your carrier settings" (http://support.apple.com/kb/HT1970), which I would also suggest trying.
Cheers!
- Ari

HI, Im using Iphone 4 and i recently got my IOS updated to IOS7 and now im getting the error message as "PDP authentication failure" Im using Aircel carrier.

HI, Im using Iphone 4 and i recently got my IOS updated to IOS7 and now im getting the error message as "PDP authentication failure" Im using Aircel carrier.
Please let me know how to fix this issue

update...
I am not one to give up. So I called AT&T today. Now they are telling me they canceled my order because they were unable to fulfill my order. Basically, AT&T told me they sold out so they canceled my order so I can proceed to reorder again. It took them 4 days to realize this. I will be lucky if I get a new phone by Christmas. I am sure they will find a way to cancel my order again.
Again, I argued, how is this my fault. I placed my order at the store around 11 a.m. Pacific time. My friend ordered his phone online sometime after me. He got his but my order was canceled. AT&T tried to explain to me that they sold over 600,000 phones, almost 500 per minute during there peak. Again, I asked, how this was my fault.
I can understand over selling the phone. It is a great product. There is no reason to cancel my order. You adjust my order and tell me you will let me know when my phone will be in. I would have been mad that my phone was going to be late but I would have survived. At least I would be getting one.
At this point, I have no order and AT&T or Apple website will allow me to order one. I just want to get in the QUEUE for one.
Frustrated.

How to solve the error message "Could not activate cellular data network: PDP authentication failure"when using 3g or gPRS on safari with an iphone 4 and latest software updates

Please can someone help me to solve the error message "Could not activate cellular data network: PDP authentication failure"when using 3G or GPRS on safari with an iphone 4GS and latest software updates. I have tried resetting the network and phone settings. I have restored the factory settings on itunes and still the problem persists.

All iPhones sold in Japan are sold carrier locked and cannot be officially unlocked by the carrier. If you unlocked it, it was by unauthorized means (hacked), and support cannot be given to you in this forum.
Hacked iPhones are subject to countermeasures by Apple, particularly when updating the firmware. It is likely permanently re-locked or permanently disabled.
Message was edited by: modular747

I have problem c connecting to cellular data network. There is massage "couldn't activate cellular data network, PDP authentication failure". What is it and how I solve this problem?

I have problem c connecting to cellular data network. There is massage "couldn't activate cellular data network, PDP authentication failure". What is it and how I solve this problem?

If you have a data only plan for the iPad with your carrier, if no change after powering your iPad off and on you will need to contact your carrier.

When trying to use internet without Wifi I get a "Could not activate cellular data network - PDP authentication failure". What is the solution?

When trying to use internet, i get a" could not activate cellular data network - PDP authentication failure" Message. how to solve this problem?

If you have a data only plan for the iPad with your carrier, if no change after powering your iPad off and on you will need to contact your carrier.

I'm getting a PDP authentication failure message and cannot connect over 3G. Help?!

A few days ago I suddenly started getting an error message when trying to connect to the internet over 3G. "Could not activate cellular data network. PDP authentication failure"
I am in Germany, on Telekom. Have called Telekom customer service and went to the Telekom retail store. Neither could figure out the problem and advised I do a factory restore on the iphone via iTunes. I did that and am still getting the error message.
The only weird thing that happened before the error started showing up is I had called Telekom the night before to add a U.S. data roaming package to my phone plan for an upcoming stateside trip. They told me to text "W2S" to 7277 in order to add the U.S. data roaming plan. I did that, and the next morning this error started popping up. Don't know if that is related or coincidence.
I am traveling to the states in a few days and would really like to get this cleared up. The only option Telekom has left for me is to mail my phone in to Apple. :-(

If I may ask, what country are you from?
To note, what you see is just not possible from a radio communication level, you're the first I've ever seen with this problem. (see photo and footnote below)
Since you said the Carrier option is available, can you go to it, turn off automatic and see what networks show? Normally it you will see At&t and T-mobile, however, if you see Sprint, you will need to go talk to Apple.
But if T-mobile does show, select it and see if your phone connects.
If not, remove the SIM card reboot the phone and try again.
I'm sorry about not being clear about the phone number, while connected to the Verizon network, is the phone number showing your T-mobile one or is it something different?
For reference,
Normally, what you will see in the status bar when on the Verizon network when not on 3G/LTE is the 1X symbol.
GPRS is a completely different communication type from 1X and Verizon doesn't support it. If you visit a Verizon store (or T-mobile) the staff will probably be surprised and confused about what your phone is showing.

TS2422 PDP authentication failure

I just brought my new iPad running 5.1 to Sweden, purchased a local micro SIM card and installed it. I show 2 bars and Tele2 3G in the upper left corner but receive the error message "Could not activate cellular data network PDP authentication failure". I have re-started several times, reset network settings and authentication key.

Try resetting your phone:
Press the Sleep/Wake button & Home button at the same time, keep pressing until you see the Apple logo, then release.

PDP Authentication Failure

My partner and I both have an iPhone 5s on the Three network in the UK
Both phones are on iOS 8.03
We are currently in portugal and because Three do not currently allow minutes from the UK to be used in Portugal.
We both bought the europass data to use.
On landing both phones worked then 5 minutes after mine stopped and received Could Not Activate Data Network PDP Authentication Failure. My partners continued to work without any issues.
I've tried the numerous online fixes without success and also contacted my provider without a resolution.
We then tried my partners SIM card in my phone to check whether it was a sim or phone issue. Her sim failed in my phone and when she placed it back into her phone she then received the same PDP Authentication failure message.
It is therefore believed that it could be a software issue.
What are your thoughts Apple?
Thanks

This is almost ALWAYS a carrier problem. Settings aren't correct for your account, etc. However, there are a couple of things you can try, but if they don't work, you need to contact your carrier & have them check your account settings:
1. Remove the SIM card from your iPhone, then turn off your phone, wait are few seconds, turn your phone back on, then reinsert the sim card and wait a few seconds. See if this fixes the problem. If not:
2. Go to Settings -> General -> Reset -> Reset Network Settings on your phone to reset the network setting on the iPhone.

PDP authentication failure Error iphone 5

internet suddenly stopped working, always error message is appearing ( PDP aunthentication failure ). how to fix that.

Try resetting your phone:
Press the Sleep/Wake button & Home button at the same time, keep pressing until you see the Apple logo, then release.

How to solve pdp authentication failure problem?

I've bought an iPhone 4 and the text and calling work fine, as does wifi. However, when trying to use internet without Wifi I get a "Could not activate cellular data network - PDP authentication failure".

I tried both the things in my 4s but still the same problem...
Edit: My iOS is 6.1.2

ERROR: Could not activate cellular data network: PDP authentication failure

I have an iPhone 3g that was given to me by a friend a couple months ago. Before I got the phone i was on a plan with Softbank in japan with another cell phone. When i got the iphone i unlocked it so that i could use my old sim card with the iphone. everything worked out fine, i was unable to use the internet via 3g since it wasnt on my plan but i could text and make calls with no problem.
Everything was working fine until yesterday when i started getting this error message: "Could not activate cellular data network: PDP authentication failure"
once this happened i could no longer text or make calls. my iphone recognizes the sim card, shows one bar of signal, the network, and the 3g symbol. i have also rebooted, restored, reset network settings, and talked with Softbank; all had no help.
i have no idea how to fix it, any suggestions would be awesome.
thanks.

All iPhones sold in Japan are sold carrier locked and cannot be officially unlocked by the carrier. If you unlocked it, it was by unauthorized means (hacked), and support cannot be given to you in this forum.
Hacked iPhones are subject to countermeasures by Apple, particularly when updating the firmware. It is likely permanently re-locked or permanently disabled.
Message was edited by: modular747

My iPad2 has error message "Could not activate cellular data network : PDP authentication failure"

My iPad2 has error message "Could not activate cellular data network : PDP authentication failure"

All iPhones sold in Japan are sold carrier locked and cannot be officially unlocked by the carrier. If you unlocked it, it was by unauthorized means (hacked), and support cannot be given to you in this forum.
Hacked iPhones are subject to countermeasures by Apple, particularly when updating the firmware. It is likely permanently re-locked or permanently disabled.
Message was edited by: modular747

IPhone4 syncing failure iOS5

I have looked online but there doesn't seem to be any solutions offered.
Since the iOS5 update I have had on going issues with syncing my iPhone 4. I have tried to remove music and clean up apps, but when I try and apply the change and sync it, the syncing doesn't occur, so I receive an error message stating it's failed to initiate. I'm one step away from restoring and losing my new apps. This is highly frustrating.
I'm on Vista Business, so not sure if this is the problem.

Hi Jiggs,
Not sure this will work for you but after exactly the same problem last week and an hour and a half on the phone to Apple, I came up with a solution that worked for me.
I simply added a contact on my iPhone via a Group. In other words if you don't add the contact in "Family" for example, the address book doesn't see it.
Hope this helps for you. Cheers.

Could not activate cellular data network(pdp authentication failure

Could not activate cellular data network(pdp authentication failure

All iPhones sold in Japan are sold carrier locked and cannot be officially unlocked by the carrier. If you unlocked it, it was by unauthorized means (hacked), and support cannot be given to you in this forum.
Hacked iPhones are subject to countermeasures by Apple, particularly when updating the firmware. It is likely permanently re-locked or permanently disabled.
Message was edited by: modular747

Pdp authetication failure ios5

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