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Question: Could not activate cellular data network

I cant access my hotmail account when i am out and about, when i send and receive the pop up window says, Could not activate data network , but my cellular is turned on.

Can anyone help?

iPhone 4, iOS 5.1.1

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Question marked as Helpful

Dec 5, 2012 8:25 PM in response to casemar In response to casemar

Same problem. It started a few hours ago with my 4S.

I can make calls and text, but no email or internet over cellular service.

It shows full bars, AT&T 4G but constantly get the "could not activate cellular data network" message.


I have restarted the phone several times - it didn't help.

Question marked as Helpful

Feb 13, 2013 6:45 PM in response to stel555 In response to stel555

Interesting thread! I got here because I got the following messages after I turned off wi-fi and turned on cellular data and data roaming to see if I could send an email. I connected to Telus 3G with strength of 2 bars.


Could not activate cellular

data network

PDP authorization failure

OK

then,


Cannot Send Mail

The connection to the outgoing server

"apple.smtp.mail.yahoo.com" failed

Additional Outgoing Mail Servers

can be configured in Settings >

Mail, Contacts, Calendars

OK


Can any level 9 or 10 member of this community tell us where to look to make sure all key settings are checked and set up properly for cellular and data roaming. Note that Apple Mail and Yahoo Mail work fine from the ipad when wi-fi is enabled. I also have a global sim card in the iPad that will (hopefully) connect to any carrier in the area. The sim card required an APN description.

Question marked as Helpful

Oct 11, 2013 1:13 PM in response to janneohrn In response to janneohrn

I had this problem with my Iphone 5s.The problem is that there are carrier specific settings that do not populate on your iphone.


You need to go to Settings -> Cellular -> Cellular Data Network and update the field that reads "APN". You need to contact your local carrier to tell you what that field needs to show. Or you can check that info from another Apple device that uses Cellular Data.


I went to my local carrier yesterday, and they fixed it in 2 minutes.


This happens because sometimes the phone updates this field automatically and sometimes it doesnt.


Hope this helps.

Question marked as Helpful

Jul 19, 2015 5:38 AM in response to JDsocial In response to JDsocial

Hi

I had "Could not activate cellular data network" issue after update of iPhone 5 to ios 8.4. I had 3G symbol next to operator but still got messege about no internet on 3G/4G. WiFi working normally. I tried all tips previously posted with the tapping of the different buttons and restarts and also dfu mode restore, nothing helped.

Then i came across this:

1. Connect to WiFi

2. Open Safari and go to: http://www.unlockit.co.nz/#_Custom

3. Select your country and operator (but usually it's automatically filled)

4. Tap on "Create APN"

and you should be good to go.

Question marked as Helpful

Feb 19, 2013 10:24 AM in response to stel555 In response to stel555

After researching more threads, this one from AU and the UK, the solution seems to be:


>settings > cellular data


turn roaming off, turn cellular off,


>settings > safari


clear cookies and data

(one guy indicated to clear history, but I didn't do that and this solution seemed to work anyway)


power off your iPad and wait 5 minutes

(why 5 minutes, I don't know but it doesn't work if you turn on your iPad too soon.)


When you turn the iPad on again:


>settings > wi-fi


wi-fi off


>settings > cellular data


cellular data on, roaming on


Go to mail and send your messages. You might have to try this a couple of times. I did.

I also got the same error message when I tried to send email a few days later.

I followed the same solution and the email was sent on the 3G network.

It is a pain, but it worked, so I am not complaining.

Hopefully someone can explain why you have to clear cookies and data to get your cell data connection to activate.

Question marked as Helpful

Aug 16, 2014 7:36 PM in response to stel555 In response to stel555

In our case, the symptom was the same after we returned from Germany and put the original AT&T SIM back in. The issue was that while in Germany, we used a service from Aldi (was very good) that as part of its set-up installed a profile on the phone. It is this profile that caused the issue when returning to the U.S. Here is what I did to fix it:

1) Go to Settings...General

2) Scroll down to Profiles and then tap on it.

3) Remove the offending profile (do not remove all profiles)

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Oct 6, 2012 2:32 AM in response to stel555 In response to stel555

I have the same problem on my Ipad after upgrading to iOS 6 (as does my partner)


I rang my carrier (Optus) and my sim card shows as not being activated.


I have to ring them to re-activate the sim card on Monday


I restored the ipad but has not fixed the problem all settings are correct


Hope this helps

Dee

Oct 6, 2012 2:32 AM

Reply Helpful

Dec 4, 2012 7:10 PM in response to stel555 In response to stel555

Please help! I receive cannot activate cellular network and it started out of nowhere yesterday. I depend on the phone. I have used the same phone and provider without chagnes to my data plan which has data. I reset netowrk settings. When It first happened I restarted the phone and it fixed the problem for two hours, then bam its back again. Reboot doesn't work. Reset netowrk settings doesn't work, power off an don doesn't work, synching with itunes from the laptop doesn't work. I can't believe there isn't a clear answer to this here. What is causing this problem? You can see the spinnign whell for a few seconds then the error occurs. I have a netowrk signal. I use 3g usb modem from my laptop to post htis message so 3g is working. Please tell me how to fix this problem!

Dec 4, 2012 7:10 PM

Reply Helpful
Question marked as Helpful

Dec 5, 2012 8:25 PM in response to casemar In response to casemar

Same problem. It started a few hours ago with my 4S.

I can make calls and text, but no email or internet over cellular service.

It shows full bars, AT&T 4G but constantly get the "could not activate cellular data network" message.


I have restarted the phone several times - it didn't help.

Dec 5, 2012 8:25 PM

Reply Helpful (56)
Question marked as Helpful

Feb 13, 2013 6:45 PM in response to stel555 In response to stel555

Interesting thread! I got here because I got the following messages after I turned off wi-fi and turned on cellular data and data roaming to see if I could send an email. I connected to Telus 3G with strength of 2 bars.


Could not activate cellular

data network

PDP authorization failure

OK

then,


Cannot Send Mail

The connection to the outgoing server

"apple.smtp.mail.yahoo.com" failed

Additional Outgoing Mail Servers

can be configured in Settings >

Mail, Contacts, Calendars

OK


Can any level 9 or 10 member of this community tell us where to look to make sure all key settings are checked and set up properly for cellular and data roaming. Note that Apple Mail and Yahoo Mail work fine from the ipad when wi-fi is enabled. I also have a global sim card in the iPad that will (hopefully) connect to any carrier in the area. The sim card required an APN description.

Feb 13, 2013 6:45 PM

Reply Helpful (18)
Question marked as Helpful

Feb 19, 2013 10:24 AM in response to stel555 In response to stel555

After researching more threads, this one from AU and the UK, the solution seems to be:


>settings > cellular data


turn roaming off, turn cellular off,


>settings > safari


clear cookies and data

(one guy indicated to clear history, but I didn't do that and this solution seemed to work anyway)


power off your iPad and wait 5 minutes

(why 5 minutes, I don't know but it doesn't work if you turn on your iPad too soon.)


When you turn the iPad on again:


>settings > wi-fi


wi-fi off


>settings > cellular data


cellular data on, roaming on


Go to mail and send your messages. You might have to try this a couple of times. I did.

I also got the same error message when I tried to send email a few days later.

I followed the same solution and the email was sent on the 3G network.

It is a pain, but it worked, so I am not complaining.

Hopefully someone can explain why you have to clear cookies and data to get your cell data connection to activate.

Feb 19, 2013 10:24 AM

Reply Helpful (9)
User profile for user: stel555

Question: Could not activate cellular data network