RV50 reboot every few minutes

my RV50 reboot every few minutes
in the log file I see ALEOS_SYSTEM_Embedded_Ace_Reset: Reboot issued from UI
Please advise

Make sure your power supply is in good working order and well connected. The RV50 uses more power when transmitting, so often, it boots okay, but an extended session of transmission will be too much for a weak power supply. To test this, visit a speedtest website. If the speedtest works okay on download, but the modem reboots on upload, the power supply may be the issue.