Beginning back in June and progressively getting worse, I am unable to receive or send a phone call using my Nexus 7. I have updated it completely. If I leave the building and travel approximately 100 or 200 yards, I have no problems.
The building itself has suddenly began to negate my phone signal. I have checked with the owners, and no structural change has occurred this year that might cause it. I have not changed any electronic devices around me that might cause it.
I am unable to use the phone period while at work, and I have missed numerous important phone calls because of it. I will have to switch phones (and perhaps providers again) if I can't find a solution.
Before this began a couple months ago, I had NO PROBLEMS for the past TWO years working in the same room.