I’m also facing some issues with EC200T module. I’m using KuWfi CPE812 router, and my LTE connection only works for just a matter of 10 seconds. After doing Ookla Speedtesting, it’s working for once then LTE internet connection drops and gone and saying check internet connection when doing the 2nd speed test. I tested the same LTE sim card on pocket wifi router and it doesn’t have any issues there, and no dropping of LET connection. I just wonder if anyone experience the same? Thank you.