PDP authentication failure

Had this issue today, tried a lot, including 2 tech support folks and 4 calls... the final fix was to remove the SIM card, reset the phone, reinsert sim, and Dial #766#.

Pretty sure it was the last part that did it.

good luck everyone!

I am having the exact same issue here in Canada, since last Friday about noon eastern. I wonder if something changed. Resetting the network worked once, for a few days, but I am back in PDP Authentication failure land now, looking for a solution. Is it because Ive been in Canada too long? I am also looking for a solution to this issue...

Similar situation for me. I just landed in Italy and my Iphone 6 does not work.

What I have:

- iphone 6

- Tmobile ONE Prepaid

Here's what i've done with my phone and none of them solve the problem:

- Enable Data Roaming in settings

- turned roaming on #RON#

- tried enabling AND disabling LTE

- tried Resetting network settings

- tried powering off and restarting phone

Despite all these attempted fixes: I still receive a 'Could not activate Cellular Network: PDP Authentication Failure'

I can't believe I'm the only one experiencing this. In the US I have no problems and have never seen this error.

Any recommendations?

I think you should. I feel like you need a trouble ticket so our engineering team can look over what's happening with your connection. We just have to get it filed for you either through Tech Support or T-Force.

Last time I asked T-Force about this matter over the Facebook, T-Force told me to talk to the tech on the phone giving me a 1-800 number that I called before,,,, should I try again?

Wow, is it still giving you the same error message? I'm not able to get to your account but I did check and we haven't been getting any official news about data not working there. I know we last left off with a Trouble Ticket that was filed for you. Instead of calling, are you able to run this by T-Force to track down that ticket?

Thanks Mike,

In Canada now and data is not working again. I have no problem with 3G in US, only in Canada it's not working.

I haven't had a chance to go Mexico this year yet so I don't know if it works there. Anyways I call tech and it's always a same thing, I have to explain everything all over, have to do reboot and on and off  stuff that I've already done million times. I told them I switched phone, it's only happening in Canada and always end up they gonna check and call back, which they never did and I call them back just to know they closed the case without solving anything.

I used to have pay as you go account, and I'm suspecting somehow my subscription is still bugged by that old configuration. Because I get text message like "Welcome to Canada Text $0.50 each and Talk $1.79...." which is kinda weird since I have don't need to pay extra with my North America Plan.

Is it possible for you to look in to my account? Because you seem to know more and you already know the situation.

I'm bit tired of calling call center and do same stuff over and over again without ever been fixed...

Gracias

Hello, and thanks for the update. I appreciate you testing your sim in another phone. If the data's not working in Canada only, then this would be something network engineers would look into. Are you still working with T-Force to file a trouble ticket? If so, did you mention that the data troubles are while you're in Canada and it's happening on another phone too?

Hi Mike, thanks for the advise and sorry that reply was kinda late,, I didn't get notification here..

I swapped the sim with other phone, called once, and tried to use data as you mentioned.

See if engineer can figure out something new knowing it's not the phone issue.

I wish this was just a phone issue then I can buy new phone, but seems it's not the case.

I have no data since November whenever I'm in Canada. Whenever I'm in US nothing wrong with it.

I'm guessing there's a glitch in my account that it is still associated with previous pay as you go account.

I agree that this needs to be looked into deeper. I'm curious, did T-Force give you any additional instructions after they told you to call in? Tech Support does have a way to reopen the most recent ticket depending on how long it's been closed.

Normally if it a ticket comes back with no trouble found, it usually means it's something with the phone. I know you tried using another phone, but in order for that to show on the network side, you'll need to make a call on the second phone first. What you have to do is put the sim in another phone, make a call first so it shows on our end, then try using the data service. If it still doesn't work, we can reopen the ticket and engineers will be able to see that the data isn't working when you tried using another phone.

We can also have Tech Support reference the previous tickets after a new one is filed so engineers know you've been dealing with this for a while. We don't have the tools on the forum to escalate a ticket but Tech Support and T-Force do. If you'd like to give T-Force another shot, you should link them to this thread so they're aware that you've tried contacting them before and the data still isn't working.