Lost LTE

I received a carrier update for my iPhone 5 in the past few days. Went ahead and allowed it. Today, suddenly, in an area where I generally get 3 bars and LTE service, my phone suddenly cut down to 1x and is now sitting with only 1 bar on 3G service. Did the recent carrier update perhaps cause a problem with Straight Talk connections to Verizon service towers and LTE service?