Im having this same issue, losing data connection over night, and only pulling the battery fixes it... Happened about 7 times in the last 2 weeks..
Here's what worked for me.
Based on the prior posts it looks like often the problem fixes itself, so I don't know if this will work for others. The Airplane Mode procedure didn't work on my droid and the data connection stayed off for 12 hours.
it fixed itself when I turned on the map program, which caused the phone to shut down/crash and restart itself. still no 3G on restart. When I went to map again, the gps turned on for the first time (it hadn't turned on before), a message like 'searching for data connection' appeared, and the 3G then appeared.
Mine went off this morning too.
Tried the cycle off / on,
tried the airplane mode,
tried the battery pull,
all to no avail.
Finally called Verizon help, 1 800 483 7356, (enter your phone #, then hit option 3), took about 10 minutes to get someone, but they PUSHED SOME UPDATE to my phone, then they had me pull the battery again and then everything was fine.
Good luck to anyone else having this problem.
The same problem was happening to my phone. i noticed my 3g icon was gone, although i was still able to use the browser through wifi.
What this means is if you are able to pick up wifi your phone will choose to run on this first instead of the 3g mobile network.
FIRST:go into your settings> wireless & networks>then uncheck your wifi box to turn it off.
NEXT:now that its off stay in your wireless & network options> click mobile neworks>then system slect> make sure its on automatic.
LAST:exit the wireless & network options. but still under settings>click data mananger>data delivery> then make sure all three boxes are checked
no extra charges will apply,you are not roaming untill you leave the country.
but this will allow you to run off 3g, and any time you can connect to wifi your phone will rather run on that. i hoped this helps
is the 29.99 the unlimited data plan so it wouldn't affect me if i were at home and using 3g not wifi though not a good idea i wouldn't be wasting money
Wow, awesome, that worked for me! I had the same problem for over 24 hours and of course it's a holiday weekend, so I was facing not getting it fixed for another 2 days. That seems like an eternity when you rely on having access to email, weather, gps, etc when travelling for work like I do.
Somehow my data roaming and data enabled were unchecked. I did go to Canada a month ago, may have unchecked them, but it was working since then without a problem, suddenly 2 days ago stopped. Who knows... I wasn't looking forward to going to a verizon store :-(
To the person who asked how to find data manager, on my phone it's called Battery and Data Manager.
Thanks again, you made my day!!
My Motorola razor had an update and after it was installed i have lost my mobile network. I can use wifi but that doesnt help when im away from home. Can anyone help. I have restarted my phone a couple of times and done the airplane mode and still nothing