Good morning. This is my first issue here so i would try to clarify my problem. I have Iphone 6+, ios 8.1, jailed. The problem is that mys iphone stopped tethering with my MBP. I tried everything written on apple support with my MBP, even reinstalling Yosemite. Nothing helped me. I've tried to tether my wife's iphone 5s (not jailed), everything works. I've tried both USB and WiFi tethering. With USB nothing happens, with WiFi I see only exclamation mark. I tried to reset iphone network setting on iphone, deleting tweaks and as a result - nothing. I do not know how to make logs on this point, so in case you need, kindly ask you to explain how to do it.