Q: iPad 3 Why 3G does not work after being on WiFi

That is exactly the issue I have been and still am having. I too, am reluctant to rush in for a replacement, as offered.

Hoping patience will eventually pay off.

Even though it is annoying, all the inconvenience being experienced by myself and untold others.

Please wake up Apple and look after your loyal customers!

Same here in Austria.

Model: New iPad 64GB 4G

Carrier: bob/A1 3G

Edit: Manual carrier selection seems to solve it. If I encounter the issue again, I'll edit this post again

SPAIN here, same problem - iPad 3 needs to restart after a few hours, or less if traveling across Madrid.

Tested carriers: JAZZTEL Telecom & spaniard VODAFONE, none of them working properly.

I'm going to try the manual carrier selection solution, let's see if it works so I can post it here.

Only say one thing apple took 3 more in three months since that released the ios 5.01 to 5.1!

How did you run the diagnostic profile? Could you pls share the instructions?

I'm using 3rd gen ipad  wifi+4G on celcom Broadband in Malaysia

despite i having 3G indicator and 3 out of 5 bar filled, in AAI app, active wwan is No.

and can't used web based apps

Saw the genius today and they gave me a new pad. He seemed to be aware of the issue. See how I go, maybe 3rd time lucky.

Same problem here.

T-Mobile Germany using Multi SIM with new iPad 32 GB 4G.

Did not have time to read this all.

Apple what are you doing to solve this!?

My iPad still not working on 3G. Found the explanation:

Apple has posted a monster profit of $US11.6 billion ($A11.24 billion) for the first three months of 2012.

That's approaching US$1B profit per week! They must be very busy doing the accounts. When things quieten down they'll find time to release a minor software update.

I'm 80% confident now that selecting the carrier manually instead of having it auto-searched solves this issue.

About 24 hours without any issues, which is about 20 hours more than usual.

*keepingfingerscrossed*

I'm not so lucky.

I did try the manually selected carrier today, here in Spain. It worked... this morning. The afternoon reproduced the problem: no internet connection unless the iPad is restarted.

I'm talking by phone to Apple Care as I write - they're going to change it for a new one, but we all know the fantastic success with that solution.

The phone operator says (and she seems to believe it for real) that it's not a widespread problem and ensuring me that it must be a hardware issue that is going to be solved replacing the device.

We obviously disagree.

Anyway I'm going to replace it.

Let's see what happens next.

Tengo el mismo problema ,lo he cambiado una vez y sigo con el mismo problema asi que el Lunes que viene creo que volveré a pedir el cambio.

A mi con tuenti movil me falla al tener el wifi activo y 3g y dejarlo en reposo unas horas al desactivar el wifi el simbolito de 3g desparece y se puede recuperar desactivando/activado datos moviles.Luego con jazztel movil me pasa cuando le da la gana y el simbolo de 3g nunca desaparece pero al entrar en safari me pone " imposible activar red movil" y para solicionarlo la unica forma es apagar y encender o restablecer ajustes de red.

Lets hope that's soon

Meantime no improvement in the issue at hand.

so far the only way i been avoiding to reset the ipad is to turn off 3g before connecting up to any wifi .. and to turn off wifi before the 3g service is turn on..

this is working but is fustrating enough as this is ought to be something working seemlessly.

btw, just a check with all those that have gone with a replacement. did you get a replacement new as in new out of a new ipad box casing and all or they are giving you a replacement new that is a re-manufactured set?