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

Just to throw my hat into the ring, I have the same problem on my iPad 3, provider is 3. If I've been using wifi I have to do a full reboot to get 3g working again. Also, I have the same provider on my Samsung phone, and I've been testing connectivity and it's noticeably faster on the phone. It's even faster if I use my iPad tethered to the phone than the built in 3g on the iPad. Wish I'd gotten a MiFi instead of the 3g version. :(

I don't know if this will apply to everyone. I just got back from a trip during which I had to to use Airplane Mode. Lo and behold,, when I switched it off, 3G was available. It disappeared when wi fi was connected so I turned wi fi off and 3G re-appeared. It s early days yet, but this might help. This suggests that it is an IOS issue.

I'm one of the lucky ones because since I reset network settings and changed carrier to manual I haven't had the problem for nearly a week. I've taken my pad to several wifi connections and it reconnects to 3G without issue now. I do notice that after waking it after its been a sleep for a while it says no service but immediately connects to 3G.

I'm with Optus in Australia.

Same problem, I have to reset my ipad 3, to get working connection to 3g network after wifi connection...

Same problem on my Ipad 3, everytime I leave a wifi connection I have to reboot to connect to 3G. Iphone on same provider always works fine. If I do nothing and return to the wifi, or even connect to a different wifi everything is fine.

Interestingly I do seem to be able to go to Cellular Data Account, and login, without having to restart, which suggests the connection is there its just the apps cant use it for some reason. Im on O2 by the way

I rang Apple about this after having spoken to my carrier in Australia(Optus) who told me it was a known iPad issue. First Apple guy knew nothing about it and just told me to reset network settings and if that didn't work reset everything and restore from a backup. Tried all that called back and the next guy said to bring it in to swap it for a new one. I told him all the forums suggested a new iPad didn't resolve the issue but he just said if it was a software problem then all users would experience it. As I didn't want to argue given they were offering a replacement I just left it at that but havent gone in to swap it yet partly because I don't think it will work and partly because it is a real hassle to do ( I don't get an immediate replacement - have to wait a couple of days). I am tempted just to wait as I mainly have access to wifi and am heartened by the reports some users offer that Apple has acknowledged the problem and is working on a fix but why would a software issue affect only some users?

Unfortunately I have to confirm this issue.

Mainly using the iPad (2012) in Wifi Environments and occasionally switching to 3G forces me to reboot the device.

Flight mode on/off doesn't help. This did not occur with the classic iPad.

Connection via iPhone Hotspot works flawlessly.

Provider is o2 Germany with a multiSIM card.

why would a software issue affect only some users?

It doesn't affect only some users. It affects all 3G users - just that most don't realise their iPad is stuffed. They might think it is their service provider's fault, that the network must be overloaded, that they have a dirty SIM, that they are in a bad area, that they must have a virus, that they have an accounts problem with their ISP, that the website they are visiting must be down, that they must have turned off 3G data, - or any of the other explanations that the Geniuses offer them. After all, when you're trained to believe that the new iPad is perfect then the only alternative is to blame something else.

There are variables even with the same ipad hardware and drivers - for instance the handshake between device and 3G provider may be slightly different. A similar example would be once upon a time the way Apple Mail handled IMAPS - if the server was looking for the dialogue between client and server to be initiated by the STARTTLS command, the connection failed because the mail programme didn't say that. So in some cases IMAPS worked and in others it just gave you the spinning beachball and finally timed out.

Fully agree with moof66 - those discussing these issues in forums like this are only the "peak of the iceberg".

Why are we still waiting for Apple to sort this issue out? This is ridiculous!

We should ask a refund like in Australia.

Why would a software problem affect only some users?

It is not the users that the saftware is bothered with, it is the networks and the sequence of visiting the networks. I have modern WiFi routers in my house and don't catch the problem there, at least not as best I can tell. But when I pass from one 3G cell to another weak Edge connection, made by an unspecific vendor with an unspecific firmware release, then back to a different 3G cell than the one I just left, well, then it crashes. Seems to happen every time when I get the combination and sequence correct. Not all switches to and from Edge can provoke he problem. This is definitely software behavior. The cell networks are full of hardware from many different venders with many different firmware releases, each of which were fixing or patching up bugs in their software. Apple is a victim of a complex and messy world where we lived. They ran a niave sequence of tests and were not aware of how much variation exists or how many different combinations, people and machines could conspire to create.

Soon they will come to the answer!

I hope!

Ok, after a week of no probs the problem has come back. So annoying. I'm off to see the "genius" tomorrow.

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!