In the past few months, I've had the OVMS drop it's cellular connection twice. It's status will still say "RegisteredHome", but no PPP session.
There are no issues with the SIM, and when manually connecting to the module through wifi and turning the modem off and on again using the buttons on the Status page, it immidiately reconnects and establishes a PPP session. But that doesn't happen automatically, which is an issue.
Doesn't the code have a watchdog of some kind to retry the PPP session on the cellular modem if that goes down for whatever reason? If not, might it be an idea to add that? Preferably with a configurable retry timer?
The code does have logic to retry the connection, but it seems that sometimes the low-level serial port has problems.
The EDGE firmware has changes to forcefully turn off and on the modem if it can't connect after some time. You can try that to see if it improves this for you.
Thanks! I'll hold off on edge for now for stability reasons and wait for that to get pushed to main. It happened twice in the last 6 months or so, so good chance that it won't happen again before then.
I've noticed that my OVMS module loses all connectivity permanently if the car drives briefly out of coverage - it happens every time for me. It's not until the car returns home and joins the WiFi network that cellular starts working again. Are there plans / timing to bring the EDGE firmware into production?
Since mid-April, my OVMS dropped cellular connectivity, but still joins my home WiFi.
I've tried removing and cleaning the SIM card and contacts, no change.
Hologram SIM, Vehicle is a Tesla Roadster 1.5
MODEM Status reports:
Model: SIM7600
Network Registration: NotRegistered
Provider: SIgnal: 0 dBm
Mode:
State: NetWait
Mix: Status up
PPP: Not running
GPS: Not running
Replied on the ticket you raised, and suggested: