So last week my Verizon ip6+ started to have intermittent service it starts with LTE then it goes to 3g and even down to 1x in areas I have always had LTE. Limits me using my Pandora and other things with unlimited data. Questions is as I have heard could it be the sim card or internal antennas or has VZ service been down or less in the last week? I put the SIM in another iphone and it went to LTE in a spot 6+ was showing 3g... Anybody have or having these issues.. Thanks in advance.