I've got 30 router-modems RUT240 and on 3 of 24 have this problem, they are working and sending data and credit is paid but always are offline in RMS web. I was connected to them via RMS the first time when they were installed but never after that and the modems are working and sending data to my server.
How can I make it connect to RMS? Could you help me? is it necessary to have fisically the devices to fix this problem? because they are in other country.