I have spoken to a Verizon Rep as well as a level 2 specialist at Motorola regarding the wifi issues with my Razr M.  I have reset, force stopped, deleted apps, etc..  No of that has worked.  I believe there is some sort of issue with secure networks.  Upon further digging, the Motorola rep I talked to mentioned that there may be an issue with older routers (mine is only 4yrs old btw) and the new update.  As of right now, there is no fix, but it may be being worked on.  This is super frustrating!!!  Gonna have to see if I can find a "newer" router for less money than data charges.