I have a strange problem with my new DLink DWR-112 3G Mobile router. I have added my user/pw/dial number into router, it works fine for the first time. After not using the device for some 3-4 hours the 3G EVDO device is disconnected automatically. After that I have to change the dial number to someone else save settings then have to change the dial number to origonal one then save again. then it works