[Ovmsdev] Module stops working after couple of days

[Mark Webb-Johnson]

This is a bit concerning. The GPRS link is rock-solid in my car, but we did have that multi-line SMS change which seems ok but could cause something like this.

Please keep us informed as to anything you find. We were going to cut the official v1.2.0 firmware this weekend, but it looks like it would be best to hold-off for a few days until we know more about this issue.

Regards, Mark.

On 2 Mar, 2012, at 10:49 PM, Wido den Hollander wrote:

> Hi,
> 
> On 03/02/2012 01:09 AM, Mark Webb-Johnson wrote:
>> Wido,
>> 
>> The only recent change to the modem handling code was in 1.2.0-rc5 - to handle multi-line sms messages and to increase the size of the network buffers.
>> 
>> If this problem is repeatable for you, could you try rolling back to 1.2.0-rc4 and see if that solves it? The git revision number is 1bb3ef4ec1df41a9b54a87c4c08918f76b5ade08.
>> 
> 
> I'll monitor it for the coming days. Last night we saw the module go on/off, going offline for about 8 hours and then it started working again.
> 
> Wido
> 
>> Regards, Mark.
>> 
>> On 1 Mar 2012, at 10:09 PM, Wido den Hollander wrote:
>> 
>>> Hi,
>>> 
>>> On 03/01/2012 02:16 PM, Mark Webb-Johnson wrote:
>>>> 
>>>> What version of the car firmware are you running?
>>>> 
>>>> If the 1.2.0-rc? series, please ensure the switch on the PIC board is
>>>> set to the GRPS position (not GSM only).
>>> 
>>> Yes, I'm running 1.2.0-rc6
>>> 
>>> I checked the switch is correct, I had this before. The GPRS works fine, but that stops working.
>>> 
>>>> 
>>>> Can you also try the main www.openvehicles.com
>>>> <http://www.openvehicles.com>  server to see if the same problem happens?
>>> 
>>> I'll try that later.
>>> 
>>> I'll try Sonny's suggestion first, sending a SMS with STAT to the module.
>>> 
>>>> 
>>>> This does remind me of problems we had many months ago with the modem
>>>> losing signal lock but that not being able to be picked up by the
>>>> module. But, I haven't seen it for many months.
>>>> 
>>>> Regards, Mark.
>>>> 
>>>> On 1 Mar, 2012, at 7:28 PM, Sonny wrote:
>>>> 
>>>>> Wido,
>>>>> 
>>>>> Green off is definitely strange. I suggest you to try reflashing the
>>>>> firmware to rule out a bad flash.
>>>>> 
>>>>> If it still drops out, try sending STAT via SMS. If it responds, then
>>>>> we can narrow it down to a GPRS problem.
>>>>> 
>>>>> Regards,
>>>>> 
>>>>> Sonny
>>>>> 
>>>>> On Mar 1, 2012 5:14 PM, "Wido den Hollander"<wido at widodh.nl
>>>>> <mailto:wido at widodh.nl>>  wrote:
>>>>> 
>>>>>    Hi,
>>>>> 
>>>>>    About a week ago I was able to install the module and get my own
>>>>>    server up and running. Everything seemed to work fine from the
>>>>>    beginning, but after about 36 hours the module died.
>>>>> 
>>>>>    First I thought my prepaid SIM-card had ran out of credits, but
>>>>>    that was not the case.
>>>>> 
>>>>>    A manual reboot of the module was needed and it started working again.
>>>>> 
>>>>>    Yesterday I opened the app and saw "Last update 8 hours ago"
>>>>> 
>>>>>    Again, a reboot of the module was enough.
>>>>> 
>>>>>    I checked the LED's and the first time GREEN was solid ON and RED
>>>>>    was flashing slowly, that is normal.
>>>>> 
>>>>>    The second time the GREEN LED was off and only the RED one was
>>>>>    blinking.
>>>>> 
>>>>>    I don't think it's a problem of GSM reception, the module even
>>>>>    worked without the antenna while lying on the floor of the car.
>>>>> 
>>>>>    GSM reception is however very good here in the neighborhood, no
>>>>>    high buildings and it's a very dense network.
>>>>> 
>>>>>    It's also weird that the module doesn't come back online. If it
>>>>>    was a short disruption it could be a connection problem, but being
>>>>>    offline for 8 hours is long.
>>>>> 
>>>>>    Has anyone seen this behavior?
>>>>> 
>>>>>    Thanks,
>>>>> 
>>>>>    Wido
>>>>>    _________________________________________________
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>>>>>    http://lists.teslaclub.hk/__mailman/listinfo/ovmsdev
>>>>>    <http://lists.teslaclub.hk/mailman/listinfo/ovmsdev>
>>>>> 
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>>>> 
>>> 
>> 
>