Is mobile hotspot working for you guys? I have AT&T GoPlan. It says I don't have data package available.
Ditto. Also stays connected when the screen goes off.Mine works,on tmobile USA
For the life of me I can't get my SP4 to connect. My hotspot will turn on, and my wife's iPhone can connect, but my surface keeps saying "Cannot activate mobile hotspot."
turn off bluetooth on the surface (i'm assuming you have the phone paired with the surface) or unpair the phone from the surface. There's some special-sauce hotspot bluetooth communication that is probably interfering with the connection from being established. I noticed the same thing with my HP laptop (running 10) and my w10m phone.
I called AT&T. They couldn't get mobile hotspot to work. They sent me address of AT&T specialized center for me to bring the phone there to have them look. Mobile hotspot worked fine on same SIM when I used on Lumia 640.
Went to AT&T device support center. They said nothing is wrong with the mobile hotspot feature on the device and probably the device is not provision correctly. Called AT&T support again. The lady said not all features of unlocked phones may work. Unfortunately, the mobile hotspot feature on this phone is one of those. Going to try with a T-Mobile sim card.So did you ever figure out the problem?