I have a Samsung 4G GT-S7560M phone (through Koodo). It currently will not provide a hot spot for internet use on my laptop. It can be switched to portable Wi-Fi hotspot, my laptop recognizes it and locks to it but says that no internet is available. I have tried my laptop on other mobile hot spots and it works. I have also tried to use another computer on the Samsung hot spot and it does not provide internet service. Any ideas?