we are facing several teltonika routers RUT240 that have very high mobile data traffic, GB in minutes instead of expected KB. The router is using m2m telekom SIM cards and is connected to a charging station.
Any connection to the charging station can be ruled out. The fimware is legacy but we have the same setup where no issue occur.
I hope someone has an idea what the root cause can be.
Are there any particular configurations that have been made on the device, or is the device perhaps added to some type of system, for example, our own Teltonika RMS (Remote Management System)? Any VPN connections or remote access setups that you have?
Have there been any particular changes made to the device since this has started happening, or was the issue present since the start of using this device with this particular SIM card?