My S9 Plus mobile hotspot is now only 5 gig and appears on 5 gig devices so I know the hotspot is working. It is no longer visible on devices that are 2.4 gig only. I also have an S8 Plus and that works fine same carrier. This causes a problem because my vehicle WiFi is only 2.4 gig. Can someone confirm this is correct, if anyone has any idea's how to get the mobile hotspot back to 2.4 gig it would be much apricated.