Since the update I been having the same problem.  I also notice the data is graying is turning off and on.  I have done a factory reset, remove the battery and sim.  But still have the same problem.  I have tried two different routers from different locations and get the same response.  Hopefully Moto is listening and working on a fix.  I read this before with the Nexus when it got the update.  Thought the problem would be fix.