I've happily been using an OVMS in my 2016 Leaf for almost a year and a half now. It's been great. But a few days ago it stopped connecting to the cellular network. All other functionality is still fine. It works as it should when it connects to my wifi. It still limits charging to my selected 'Sufficient SOC' when away from wifi too. It's just that I can't connect to it through my phone app when it's away from my home wifi. I have a Hologram SIM, with credit on the account. It has otherwise been nearly flawless since I installed it. I'm looking for some help diagnosing the problem.
Here's the module summary:
OVMS MODULE SUMMARY
Module
Version: 3.3.003/ota_1/main (build idf v3.3.4-848-g1ff5e24b1 Sep 1 2022 08:40:30)
Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/3; MODEM SIM7600
12v: 11.9v
MODEM Status
Model: SIM7600
Network Registration: Searching
Provider:
Signal: -51 dBm
Mode:
State: NetWait
Ticker: 2859
User Data: 0
UART:
FIFO overflows: 0
Buffer overflows: 0
Parity errors: 0
Frame errors: 0
Driver Buffer overflows: 0
Mux: Status up
Open Channels: 4
Framing Errors: 0
RX frames: 5288
TX frames: 295
Last RX frame: 2 sec(s) ago
PPP: Not running
GPS: Connected on channel: #1
Status: enabled
Time: enabled
Configuration
[auto]
dbc: no
egpio: no
ext12v: no
init: yes
modem: yes
obd2ecu:
scripting: yes
server.v2: yes
server.v3: no
vehicle.type: NL
wifi.mode: apclient
wifi.ssid.ap: LEC205
wifi.ssid.client: Shish Kabob
[can]
[dbc]
[egpio]
monitor.ports:
[http.plugin]
[http.server]
[locations]
[log]
[modem]
apn: hologram
apn.password:
apn.user:
enable.gps: yes
enable.gpstime: yes
enable.net: yes
enable.sms: yes
pincode:
[module]
cfgversion: 2020053100
init: done
[network]
dns:
[notify]
[obd2ecu]
[obd2ecu.map]
[ota]
http.mru: https://api.openvehicles.com/firmware/ota/v3.3/main/ovms3.bin
server: https://api.openvehicles.com/firmware/ota
[password]
module: **redacted**
server.v2: **redacted**
[plugin]
[plugin.disabled]
[plugin.enabled]
[plugin.repos]
[power]
[pushover]
[sdcard]
[server.v2]
server: api.openvehicles.com
tls: yes
[server.v3]
[ssh.info]
fingerprint: lxahRgeXFk9wMc7m/s3jThGNnAUOezjzvVPfQE+qnTs
[ssh.keys]
[ssh.server]
key: **redacted**
[system.adc]
factor12v: 195.7
[tpms]
[usr]
[vehicle]
12v.alert:
12v.ref:
id: LEC205
name:
stream: 1
timezone:
timezone_region: -Custom-
units.distance: K
[wifi.ap]
LEC205: **redacted**
[wifi.ssid]
Shish Kabob: **redacted**
[xnl]
autocharge: yes
cabintempoffset: .0
canwrite: yes
cfg_ev_request_port: 1
maxGids: 502
minrange: 0
minsoc: 0
modelyear: 2016
newCarAh: 115
rangedrop: 0
soc.newcar: no
socdrop: 0
soh.newcar: yes
suffrange: 0
suffrangecalc: ideal
suffsoc: 80
REPORT ENDS
I thought it was weird that it would suddenly stop, so I gave it a few days. It's now been a week. I did try putting a working SIM from a phone into it, and the module summary read as:
OVMS MODULE SUMMARY
Module
Version: 3.3.003/ota_1/main (build idf v3.3.4-848-g1ff5e24b1 Sep 1 2022 08:40:30)
Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/3; MODEM SIM7600
12v: 14.6v
MODEM Status
Model: SIM7600
Network Registration: RegisteredHome
Provider: Koodo
Signal: -79 dBm
Mode: WCDMA;Online
State: NetLoss
Ticker: 8
User Data: 0
UART:
FIFO overflows: 0
Buffer overflows: 0
Parity errors: 0
Frame errors: 0
Driver Buffer overflows: 0
State Timeout Goto: NetWait (in 2 seconds)
Mux: Status up
Open Channels: 4
Framing Errors: 0
RX frames: 105
TX frames: 40
Last RX frame: 9 sec(s) ago
PPP: Not connected
Last Error: User Interrupt
GPS: Connected on channel: #1
Status: enabled
Time: enabled
… the remainder of the status report is identical to the first one.
REPORT ENDS
It shows the right cellular provider but it still doesn’t work. I couldn't connect to the module once it was away from wifi. I'm assuming because I didn't update any APN settings in the module.
Does this indicate the OVMS hardware is okay but the Hologram SIM isn't connecting to the cellular network? Is there a way to test the SIM?
Any advice is appreciated. Thank you.