Hi, I hope someone can help me with this issue. In the last week I verified the same issue on the Rut240 router, I changed device 2 times and the same issue appears after 2 days of normal correct working. The firmware version of the original device was 00.01.06.1 and on the second device it was 00.01.11.1. The connectivity of the sim appears to be ok but the device could not connect to the internet. I tried a manual reboot but it couldn't solve the issue. I tried with auto apn and with the manual insertion. It solved only with a restoration of a previous backup. I brought the router with the issue in my office and I inserted a different sim and APN. I tried a firmware upgrade to the latest version. Nothing happened. Could it be victim of an external attack and can I solve the issue with an upgrade of firmware to the latest version? On the log file I saw nothing that could help me with the understanding of the problem, can I do something else to better investigate? Meanwhile I changed the device a third time, and it is working for a week (with a firmware version 00.01.11.1). Thanks for a reply.