Verizon Been this way ever since I had it... just thought it was a lack of 4g towers in my rural area. Then one day, the thought occurred to me that I have a 4g JetPack WiFi router registered to use on trips away from home. So, I fired that up and then with DATA off, let the Note 4 connect to it on WiFi... the download speeds instantly jumped up where they should be, in the 30+ mbps arena. so, called VZW customer service. They got it to work for me once, then when the screen locked again, it quit... I'm now wondering if my Note 4 has a bad radio in it? And just maybe that is why I got a good deal on it from Swappa ?? Anyone got any ideas on what I could try different? I have gone to Mobile Networks and switched it to all 3 modes. Global works but always goes to 1x on telcom calls LTE/CDMA works but always goes to 1x on telcom calls (probably normal) LTE/GSM/UMTS sometimes DATA will work, usually won't. have seen 4g once. The GSM mode will sometimes let it hook up to 4g, and it works good, but not reliable... but, I can't get telco calls or SMS.... as VZW is a CDMA service. so, there it is... would appreciate comments from Note 4 owners about your 4g experience.