Ever since I upgraded my RM1PE to firmware version 1.8.0, the device loses network connection roughly every 5 to 8 hours. I have it connected to an H3C 24-port switch, and the RM10 on the same switch works perfectly with no such issues.
I've tried replacing the Ethernet cable and the power adapter (the setup is backed by an online UPS), but none of these troubleshooting steps fixed the problem. When I rolled back the firmware to version 1.7.1 during testing, the device operated stably with zero disconnections.
I later heard that this issue was resolved in firmware version 1.8.2, so I upgraded to that release. Unfortunately, I'm still plagued by the exact same disconnection problem.