[T-Mobile Samsung Galaxy Note 3] cef1000:
Got a Note 3 right after they came out.

Had an issue with the first one, not the least of which was the pervasive WiFi disconnect issue many of us have been seeing; in my case also had extreme battery drop all of a sudden - like 45% in an hour - not abnormal use.. So, swapped it about 20 days ago for another one.

Seeing the same WiFi connectivity issue I saw with the first one and then all of a sudden got a pop up :

"Prevention Information"

An application has been forced to stop for an unauthorized attempt to access system in your device. It may be safe to delete an application obtained from an unauthorized route. Check Now? (with a Do not show for 30 days check box; Cancel or Ok buttons)

If you click cancel pop up comes back after about 10 mins more or less; if you click Ok you get brought to a list of what you have downloaded to weed through whatever you've installed.

Full disclosure: This device is out of the box, not rooted; stock Rom. Only none play store apps installed were Adobe Flash and Amazon App store. I use WiFi extensively for WiFi calling at my office, since there isn't a carrier on the planet can get me a decent signal. I live and die behind WiFi calling it's why I went T-Mobile to start with.

* So I proceed to scan hell out of this, using Lookout, Sophos and MalwareBytes can't find anything..

* Ok so I uninstall everything I've been experimenting with thinking maybe the mix is a problem. Doesn't solve it

* So then I do a software Backup and restore - and go to put back the one app I need the most for my Hosted Exchange connectivity to work the best for my needs adding them back one at a time to see what's causing this . Of course I turn WiFi back on to connect to my network and signing into my Google Account Google Play takes off to restore all my stuff and do all updates for anything stock on the phone. (Phone Vendors WAKE UP; Stop making the default Google Play behavior Up Date Automatically when on WiFi, let the user decide before taking off to do what you think is best) And - The pop up is back just as I get the 1 app I need on the phone. (email support for the app saying it's them - MANY APOLOGIES to Nitro Desk, it's not them.

* Very long story and many soft and hard resets, to try control the behavior, later; including running 2 miles up the road to control Google Play auto update on WiFi, but, only be on the T-Mobile network for the initial startup....

With nothing but a minimal start-up and No Apps installed other than what Google Play demanded to be able to work at all out of the box when signing in; once I got the phone back to the office and started WiFi for my network - Blammo ! the pop up is back.

This "error" or warning message is from the base Android/Samsung/T-Mobile deployment configuration for a Note 3 when starting WiFi at all.

So, I happen to be near the T-Mobile store I bought this at and go in to tell them about this and the guys there running a Note 3 say they all get the same issue.

My conclusion is that this is a miss-configuration of software and/or permissions at the core OS level when starting WiFi; likely contributing or the primary cause of WiFi connectivity issues on this device; as reported in this and other forums.

I have screenies of this condition and would love to pass this to T-Mobile and Samsung engineering, but, unlikely I can get at them to do so; hopefully they are already aware of this and working on a fix.

The other interesting thing I noticed is that when doing a hard reset: during the start of recovery mode I get an "error" then no command message under the little droid as it settles down to the menu.

Also at the end of the recovery mode process for wipe data/factory reset I get an "error" message in red as well.

Again, seems to me there's a serious flaw in their Core programming setting up proper permissions for the base WiFi stack to start without triggering a security violation.

It doesn't matter if you connect to an AP or not. Just starting WiFi the pop up will come up in 60 - 90 seconds.

This is consistently reproducible.

T-Mobile is sending me another phone; but, I believe it will behave the same way - hope not, we'll see.

cef1000