I updated my for-v3.3 build yesterday and booted it on my esp v3 board with the SIM7600 board. After running for a day, as usual, the simcom is not happy. Is this a side effect of not having hardware flow control for the modem uart? I remember we had the "User Interrupt" bug a long time ago but I don't remember the details or how that got fixed. Craig Welcome to the Open Vehicle Monitoring System (OVMS) - SSH Console Firmware: 3.2.017-112-g4af06660/ota_0/main Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/3 OVMS# cel MODEM Status Model: SIM7600 Network Registration: RegisteredRoaming Provider: AT&T Hologram Signal: -93 dBm Mode: LTE,Online State: NetLoss Mux: Status up PPP: Not connected Last Error: User Interrupt GPS: Connected on channel: #1