Sorry for the delayed response.
For RMS - make sure the location monitoring is enabled by selecting the device in question on RMS and in the Management menu click the Set Monitoring Update Period. Enable the GPS monitoring and specify how often should the location be updated.
RMS uses multiple ways to determine the location of the device with the following priority:
- Manually set location on the RMS map;
- Device position obtained from GPS;
- Approximate location based on the nearby cell towers;
As for the location on the iPad and a Windows laptop, it's hard to say what could be causing the issue, but it's not related to the GPS position of the RUTX11. As Zygimantas mentioned, the devices obtain the location from the nearby WiFi networks, public IP address, and nearby cell towers. It may be that the client devices simply do not have enough information to determine their location.