Hi, I have a RUT950, which was working fine on 4G for many many months. Then started to become intermittent. Drops 4G, then all connectivity. Tried FW upgrade to 6.02, tried hard reset, tried factory reset, tried auto reboot with latest effort being try restart modem when ping to 8.8.8.8 fails. Tried using the SIM in slot-2. Checked APN settings all still there. Sim works fine in an Huawei modem. Losing the will to live with this thing. Has anyone any thoughts on what it could be?