Q: Contstantly have to reboot iphone 6 to obtain data connection

I'm having the same issue with my iPhone 6. I'm trying to figure out if it's the phone or iOS 8. I've read others having connectivity issues with iOS 8, but I have a iPhone 5 working just fine on the new OS. So, I'm thinking it is the iPhone 6.

The only way to regain the LTE or Wifi connection is to restart. Both time out 10-20 mins later. Let me know if you have any luck restoring to factory settings.

I am having similar problems but cannot get phone to reboot.  totally frozen. anyone seeing this? any fixes out there?

You'll need to reboot to factory settings from iTunes. That's the only way to reboot to factory settings.

Restored to factory settings and still having the same issue. Going to take it in to get replaced. What a drag.

I had the same issue on my first iPhone 6, every few hours i would lose all data connectivity over WiFi and cellular. Have 3 of the exact same Verizon iPhone 6's in the house and only mine was having the issue.   Was traveling for work so put up with it for a several days then tried a full restore via iTunes and setup as new iPhone but the issue persisted.  Made an appointment at Apple store to get it looked at and when I went to Genius bar the guy didn't believe me since it was working at the time and then lectured me on how WiFi works differently on every device but didn't listen when i said it was ALL data connection that gets lost not just WiFi. I had to argue with him in order for them to replace it.

I have had my new phone only a couple hours but so far so good... will report back tomorrow.  Good luck to everyone having this issue, hopefully its just a bad batch of phones.

Bad news for me, my replacement phone from Apple is doing the same thing... Not sure what to think anymore.

I received my replacement yesterday and so far so good. The personal hotspot is still not working, but I'm being told its a Verizon issue. Might be a iOS 8 issue.

Anytime I leave a wifi connection with my iPhone 6 it loses the cellular data connection when switching to 4G/LTE. Rebooting restores it. It was happening with 8.0 and after 8.0.2. Reset network settings, did a restore as new too. Same behavior. Turning off wifi (whether in settings or unplugging my router) and letting it  aquire cell data works fine tho SMH? Contacted tech support and they think it's a hardware issue. I have an appointment at an Apple store this afternoon. Hopefully a replacement is next. This is an utter PITA.

Are you using the same sim card from your old device in the new device? If so you may need to call Verizon and give them your new IMEI to get the hotspot working.

My first replacement device I received friday had the same exact issue as my original device, worked great for a couple hours then lost data connection and only a restart would re-establish.

I got second replacement device on Saturday and this time asked for a new SIM card as well since the only common piece of hardware between my original device and the first replacement. I then called Verizon to activate the SIM and IMEI and they confirmed all is well on their end with this line and the device.  I also did not sign into iCloud or iTunes on my new device, its setup with no account and no apps since I wanted to eliminate anything that was shared between my original device and the first replacement.  Good news is that everything has been working great for nearly 2 days now, I am going to give it another day to completely eliminate a hardware issue and then sign into my iCloud (won't restore from backup though) and see if the issue comes back.  At least that way I will be able to see if its an issue with my iCloud account in which case I have no idea how to get resolved.

Extremely disappointing that I am investing all my time into this issue just so I can use the device I just spent $800 on.  Nobody at Apple seems empowered enough to figure it out.

I just got back from the Apple store, and the tech told me that AT&T was having issues activating iphone 6's. Apple issued me a new Sim card and told me I need to take it to the AT&T store and have them activate it. I have not seen my iphone connect to the LTE network since I received it. On the way home from the store my phone did lose data connection, so it's not just when it leaves Wi-Fi. I did toggle the airplane mode and that brought it back right away so at least I don't have to reboot every time.  I have an iPad air with data service and that can next to LTE. I have an appointment to get the new card installed and activated, I hope this does the trick. I'm glad you're having luck with the new Sim card, as it gives me hope that they may get mine fixed too. Hopefully others with the same issue will find this and benefit from our time troubleshooting.

My replaced iPhone 6 is now having the same issues as my original iPhone 6. At first, the replacement was functioning normally. Over the past 24 hours I have had to reset the phone several times to reconnect to LTE and/or WiFi.

Starting to think this is a software issue since it would be ridiculous to think both phones have had the same issue. Or are these iPhones just really ******?