Hello,
I have tested a couple of different devices with the latest 7.04.2 firmware, with a couple of different operators, but was unable to replicate the issue. In every case commands were executed.
Could you specify, if tests were performed on 7.04 or 7.04.2 firmware version. If it was 7.04, could you update to the latest and try again.
Also, could you reset one of your devices to factory default settings and try SMS commands?
If the issue persists, I would like you to generate a couple of troubleshoot files and attach them by editing your question:
- Downgrade one of the devices to 7.02.07, send a couple mobileon/mobileoff messages, then access router's WebUI, go to System -> Administration -> Troubleshoot section and download troubleshoot file from there.
- Upgrade the same device to 7.04.2 with Keep settings option set to off. Send a couple mobileon/mobileoff messages, download troubleshoot file.
Comparing device configurations might provide more insight into the issue.
Best regards,