Q: No Service on Ipad 2 GSM 3G after IOS 8 Upgrade?

I have the same question.  I upgraded to IOS 8 last night and I have an iPad 2 3G (no gsm) with ATT and now it says "No Service" in the upper left hand corner and when I check the general settings > about, it says "Network Not Available" and "Cellular Data Number Unknown."

I just powered down my iPad 2, waited a few minutes and restarted it.  The cell signal from AT&T came back.  You might give it a try.

had a user experience the same thing. called AT&T and they had her restart and works fine now. for now anyways.

I Also have the same issue.

I Have/had the same issue, up until about 3 pm today.  Now all of a sudden I have cellular data back, but can no longer connect to wi if.  Just spins and spins when you try to connect

I was having same problem and was doing the power off and on to fix.  it comes back on but then after a while goes to NO SERVICE.

MY solution that is working so far.   go to i cloud and then choose iCloud Drive, scroll to the bottom of the page and turn OFF  cellular data.  this allows icloud drive to update using only wifi instead of consuming data plan.  I am wondering now if every time it goes to no service if its trying to back up in iCloud Drive and turnnig off (in backgrounds) cellular data plan.  Not sure I am right on this but it makes some kind of sense.   Everything gets slower on the new IOS8 and I wonder if the icloud drive is also part of that problem.

hope this helps.

It seems I have found (i.e. stumbled across) a solution to the problem: Go to Settings -> FaceTime and turn off 'iPhone Cellular Calls'. I did that yesterday, and I have not lost my cellular connection since then

8.0.2 seems to have fixed it. At least for me. Fingers crossed!

I Was having the same issue when I upgraded to io8.0.1,  getting No Service occasionally but WiFi connected.  Updated last night to ios8.0.2 and thought all was well until about one half hour ago I went from my house where everything was fine, to the hospital to visit and the No Service was back.  The iPad connected to the hospital WiFi ok and worked.  I then did a restart an

d service returned.  Any further sugesstions?

Download new ISO 8.0.2 update out today may fix some problems. Bsydd uk

I suggest you TURN OFF cellular data on iCloud drive (scroll to bottom) as its defaulted to ON.  This way the device does not keep trying to turn it off  in the background causing the NO SERVICE since backing up on a 3G dataplan is not ideal.   I also upgraded to IOS8.02 and have kept the iCloud drive on cellular off and thus far I conitnue to have no problem.   Hope it works for you too.

IIt has been off.  Has't happened this afternoon but we'll see.

Today appeared a new update for 8.0.2 and after install the problem was solved

IOS 8.0.2. has NOT fixed this problem for me.  Neither I-Cloud or Face Time suggestions work either...Only solution thus far is to power off, and power back on... a real hassle..