Forum Discussion
PDP authentication failure
Hola y'all
For the past few days I can't connect to data at all and get pop-up saying "PDP authentication failure" On my iPhone4.
I can still call and do sms.
I have North America plan and in Canada for couple of days. I come here quite often and there was no issue before until few days ago.
Ive done couple of thing trying to fix this including
-Switch on/off
-Sim in/out
-Update to latest OS
-Restore iPhone
-Hard reboot
-Switch roaming carrier
-Check APN
I put my SIM card to other iphone and still getting PDP error so it's not a devise problem.
Called customer support but no solutions what's so ever. My account is in good shape.
One thing that comes to back of my mind is, I receive SMS from T-mobile saying they have implemented some extra fee
for Prepaid customer.... blah blah,,, and since I'm on monthly plan (I was with prepaid plan before) I thought it's weird and eraced the text.
So it could be technical glitch on account problem?
please help.
Thanks for posting @piperoni!
Gotta hand it to you, you've covered a lot of the bases needed to fix this yourself. Sorry calling hasn't fixed this but have you given our T-Force team a try? You can reach them on our Community-2153 page using social media. A trouble ticket may be needed now if this issue still continues and they can help file that for you.
Good morning, bringing this thread back from the dead. I too was having this issue initially on my iPhone 13 Pro Max while in DR a month ago… did the standard resettings to no avail.
Yesterday we made it to Canada, upgraded to the iPhone 16 pro max a week ago and same thing…
So thank I found this post as I did #766# then #763#, restarted phone and now that seemed to do get things to work!
Is there a way to change the APN on the T-Mobile esim?
Wow ...this problem has been going on for a while. I use an iPhone 11 Pro . installed T-Mobile esim for whenever I'm in the US. Note that my phone works everywhere and I've never had an issue with data. My data works in the US with T-Mobile. I've been to Canada twice with it and I turned on the service ($5)to get data and calls in Canada. Unfortunately all I got was PDP failure.
And yes I too went through the hoops with customer service and then the tech team. Nothing worked!
As I have mentioned, my phone works fine whenever I travel. Never had data issues. Not even in Canada with the exception of this particular situation: esim, prepaid plan with add-on for Canada/Mexico.
On both trips I used an Airalo esim for data only when I could not get my T-Mobile data to work. No issues with that esim data.
I'm thinking there is an issue with something that is embedded in the network code. It is not the phone and it really is an insult when we have to keep pointing out that the phone data works just fine including in the US but just not in Canada or Mexico as the case may be.
Surely by now someone should have spent the time to dig deep and find a solution. I'm also guessing that many more people have this issue but they just give up trying to solve it. Instead, they probably find an alternative.
Having the same issue in Mexico. Tried #766# but didn't work.
Hello. I'm having the same issue and nothing I've done so far seems to be working. I have tried resetting the phone, removing the SIM card, turning it on airplane mode and then restarting the phone and have dialed #766# and nothing has happened. What do i do?
I had the same issue and literally tried everything. Nothing worked except the #266# and hard restart.
You rock! You just saved my trip.
Since I arrived in canada I had no data, I called t mobile and I did everything. #766# is the answer, I don’t know what it does but it works
Thank you. Was having the same issues and have done all the above but #766# was the answer.
I had follow the steps starting from the SIM card too-like metooblam. After a day of frustration, this did the trick! It worked. Thank you for sharing!
Thank You yogi_Iv. I had same issue and did #766# then #763# (disable roaming) and restarted phone and now it works!
