My iPad doesn't connect to 4G when switching from WiFi.

I am having problems with 4G dropping intermittently on my iPad 3rd Gen (have AT&T in Michigan). I know I'm in a 4G area, because I can see 4G on my iPhone. I originally restored from my IPad 2 to the iPad 3. When 4G drops, have to reset network settings or turn iPad off/on to pick up 4G again when this happens. Here's what's been done so far:

• Told by Apple to reset my network settings. Worked for awhile then dropped off again.
• Told by Apple (after checking with AT&T) to reboot. Worked for awhile then dropped off again.
• Told by Apple to go to AT&T and have the SIM card replaced. 4G dropped off again on the way home.
• Told by Apple to trade out iPad 3 at Apple Store and don't restore from backup. Genius bar tech didn't listen to what I told him, gave me a new iPad 3 and restored from my old one. 4G dropped again within 20 minutes.
• Told by Apple they would send me a new iPad 3 from the factory by mail. Wanted to charge me $30 express shipping (which I avoided by buying the $99 AppleCare Warranty). Apple placed an $829 hold on my credit card until they get the old iPad back.
• Didn't attempt to set up third iPad 3 until I called Apple. They had me set up as a new iPad and sync info manually from the old one. What a pain, plus not everything synced over. Guess what? 4G still drops intermittently.
• On Easter Sunday, called AT&T. They said everything looks good on their end and that I must deal with Apple. Called Apple and they said it might be the SmartCover, which is from Apple and brand new. Told to leave it off and see if 4G still drops. I'm waiting that one out right now.

Is this crazy or what? I've spent enough of my time on this issue (at my hourly rate) to more than purchase a new iPad. I'm totally fed up. Apple's customer service, which I always thought was stellar until now, I'm now not so happy with. Wanting me to pay for express shipping, then requiring me to buy AppleCare on a device that was less than a week old, spending 10-12 hours on the phone with various technicians, including 3 senior techs, getting disconnected by them several times with no call back, driving to AT&T store 25 miles away and later to the Apple store 30 miles away, then they screwed up an sent replacement iPad to my home when I told them to send it to work because a signature was needed by Fed Ex. Very bad customer service. So frustrating! I have had 5 iPhones, the iPad 1and 2, a MacBook and an iMac with no problems.

Ideas, anyone? How should I approach this?

Yes, I am having the same issue. Cellular connectivity goes out whenever the device is put to sleep or switched to a WiFi network. I have to go into Settings -> Cellular Data and turn that off and then back on. It instantly starts working again.

I'm sure there will be a fix for it soon. (Yes, I've reported it)

I have this problem riding the metro. I get super fast LTE here in D.C. area (at home and work). When I'm riding Metro and go into tunnel, signal of course drops off. Soon as I get out of tunnel I get 5 bars LTE again but no connection to internet. I get a popup window that says my cellular plan is not activated (or something like that). Clearly my plan is activated and it's not all used up because haven't used that much off of WIFI. I too have to turn off cellular data in settings and turn it back on. Then it's fine. I haven't waited more than 2 minutes to see if would reconnect by itself. I shall have to try that and I'll report back my findings here.

I have unfortunatelly the same issue. I do not have the LTE, becasue I have the European model without LTE. But I have the same problem with losing the internet connection using cellular data (3G) although I have strong signal and 3G icon. Very frustrating

I see the Cellular Plan not Activated message frequently when the cellular signal is either weak or when it varies rapidly in strength. This always happens when I'm in a vehicle of some kind traveling rapidly. The variation can easily happen on the Metro in DC when going into and out of tunnels but other nearby interference can cause it as well. Normally I just ignore the message and have a little more patience. This allows the iPad to eventually connect to the cellular network and finally connect back to the Internet.

If the signal strength variation happens quickly from bad to good and back to bad, etc. the cellular circuitry may not ever have time to complete the connection and you'll see that message again.

Same problem here! Using WLan and then 3G at another location, the iPad shows me a full connection on top, but no internet connection can be etablished...

Nobody here knows how to fix the problem. Any suggestions?

I am another person having a similiar problem! I have a new iPad 64GB + 4G w/ at&t. I am on my 3rd SIM card and 2nd iPad. Within the last 26 hours, I have talked to 4 individuals at at&t and 6 at Apple. Currently I am waiting for at&t to get back to me with the results of a "network check", by NLT 8p on 28 March.......

My problem is that '4G' drops either while I am sitting at my desk or traveling, but does not reconnect on its own. I have to either toggle airplane mode or cellular data on/off. Typically the drop occurs with 2 to 5 bars showing...... Note sure what to do, as both Apple and at&t have told me that there have not been other reportsof this issue.

After 4.5 hours on the phone tonight and 2+ hours with a trip to the Apple store last night, it is getting a little frustrating.

Should note that I am also in St. Louis, Missouri.

It is getting even worse. Today when I lost connection (although I have full signal 5 bars and 3G icon) I had to switch the device off and on to bring it back. Switching off/on airplane mode or the cellular data on/off did not help. This is really bad!

Same problem. Also in St. Louis. 64gb iPad with Verizon LTE. If I turn off wi-fi or move out of wi-fi range, the LTE doesn't automatically connect to the Internet. I get plenty of bars and the LTE symbol, but no Internet unless I restart. (Haven't tried toggling airplane mode or toggling cellular data.

This can be explanation and solution (advise by Krzysztof Przygoda):

http://iknowsomething.com/hands-on-ipad-3-vs-ipad-2-and-issues/

Did you all restore your new iPad from archive (from ipad 1 or 2) or set it up as a new device?

"The issues appear to affect the WiFi-only model of Apple's latest hardware, with SIM-connected variants apparently safe due to the black antenna panel" I posted this to outlined that our issue still is not public! And should be!

Again, this is two different issues. What would you consider public? Multiple discussions on a public forum? You're involved in a few of them here. Have you contacted AppleCare? That is the only way Apple will know about it.

Again, I understand that this is different issue. I just posted this to let you know that one issue with new iPad is under investigation by Apple so perhaps our issue also finally will be investigated. And, yes i did report it to Apple.

To assume an issue is not being investigated because it isn't mentioned in an rumor site's individual article about a different issue is incorrect.

And a simple google search shows it is mentioned on other sites in articles and forums, since that will make it a real high priority issue, it seems.

I have the same issue on the "New" iPad. When leaving WiFi, I get the four bars and AT&T (the "4G" is missing), but no cellular connection. I then go to settings, toggle off Cellular and wait for "iPad" to replace the four bars and AT&T. Then I toggle Cellular back on and the four bars, AT&T, AND the "4G" appear and I have a cellular connection.