Ive been having this issue since Nov 2016, when I enable my hotspot people are getting an authetication failure may it be an iphone or android device.. Changing either my phone name under settings or another password on my hotspot can sometimes temporarily fix the issue and it comes back again either an hour after or the next day, Ive already performed a device reset. When they try to connect I do get the blue status bar that 1 device is connected and it dissapears about 10 seconds after. I am now on ios 10.2 and still have this issue. I do not have any carrier limitation on my hotspot as there are no issues on my hotspot when I was using my adroid device. I need help in resolving this