My car has had the ATT data car installed for a year. I decided to try GoogleFi because they give you data cards for free with your phone. So I put the googlefi car in the sim slot and put in the h2g2 and it works great for about 20 minutes. For a week all I did was short trips and had no problem. I had a few longer trips this week. After 20 minutes it drops from 4g to 3g and then will quit working. Unfortunately, this is also a week that Jag put out the 20c1 update so I dont really know where the problem is. Have you had an issues like this?