I had the same issue as some others here, the Sim card I use is working fine on the TP Link 4G router, but not in the recently purchased RUT950. Data connection appears strong (-71dBm) and the state appears "registered". I also tried manual APN without any changes. I cannot get any internet when connecting via Wifi. The mobile interface is running and at the top of the list, firmware RUT9_R_00.07.00. Any ideas?