4G LTE Signal goes white and data connection lost


In the last 3-4 weeks I've started to have problems with my Droid Bionic 4G LTE loosing data connectivity intermittently in the Minneapolis / St. Paul VerizonWireless area.  Has anyone else been experiencing this problem as well?  The connectivity is consistently hit and miss throughout the entire metro and suburbs areas.  4G LTE connection good for 5-10 mins with data connectivity (blue signal color on the 4G LTE) and then the 4G LTE turns from blue to white and the data connection is lost!  Any ideas what could be causing this problem.  I have a friend with the exact same problem, so I'm pretty confident that it is not the phone, but rather Verizon Wireless' network.  Note that the phone generally (98% of the time) retains the 4G LTE signal, but the "data" connectivity seems to "disconnect".  Over subscription issue on the backside of the VzW Network?