I have a nexus 7 on Telstra's 4g network in Australia. When I got the tablet, WiFi hotspot worked perfectly, could connect laptop and phone to it without any trouble. Recently, I think since latest update to 4.4.2, hotspot no longer works! Its not a carrier problem because I can tether my laptop to my phone on the same network, and its not a problem with the laptop for the same reason. I have searched everywhere, downloaded recommended apps (can't see how that would help but tried anyway), but had no success. Should mention that laptop picks up and connects to the nexus 7 hotspot, but shows connection as limited, no internet access. Help me please before I donate the tablet to my dogs.