Connection instability

[mark.wahlert at gmail.com]

Can you help me understand how I can check this?   
 
 
 
 
 

 
>  
> On Feb 5, 2017 at 2:52 PM,  <Aleksander Morgado (mailto:aleksander at aleksander.es)>  wrote:
>  
>  
>  
>  Hey, 
>
> On Sat, Feb 4, 2017 at 3:27 PM, Mark Wahlert  <mark.wahlert at gmail.com>  wrote: 
> >  LEDE kernel 4.4.42 
> >  mmcli 1.7.0 
> >  mc7455 
> >  tp-link archer c7 
> >  
> >  config interface 'wwan' 
> >  option device '/sys/devices/platform/ehci-platform.1/usb2/2-1' 
> >  option proto 'modemmanager' 
> >  option apn 'x.xxxxx' 
> >  option lowpower '0' 
> >  
> >  MM debug log 
> >  
> >  I have a script running every 30 seconds to see if google.com is reachable, 
> >  if it is "ok" is logged, if it is not "crap" is logged and I turn the 
> >  interface down and bring it back up. The connection is re-established on a 
> >  new bearer. I ran the test overnight and had just two disconnects. But I 
> >  do not see anything telling in the MM debug log. 
> >  
> >  Most interesting is that this AM the moment I started to leverage the 
> >  connection - it started dropping again after very few disconnects overnight. 
> >  
> >  # cat reconn.sh 
> >  #!/bin/bash 
> >  
> >  while : 
> >  do 
> >  
> >  wget --spider http://www.google.com || (logger "crap"; ifdown wwan; sleep 5; 
> >  ifup wwan) 
> >  
> >  logger "ok" 
> >  
> >  sleep 30 
> >  
> >  done 
> >  
> >  
> >  connection monitor log 
> >  
> >  Summary of disconnect events: 
> >  
> >  cat log | grep -i crap 
> >  Sat Feb 4 03:29:35 2017 user.notice root: crap 
> >  Sat Feb 4 05:01:46 2017 user.notice root: crap 
> >  Sat Feb 4 08:30:55 2017 user.notice root: crap 
> >  Sat Feb 4 08:32:30 2017 user.notice root: crap 
> >  Sat Feb 4 08:34:06 2017 user.notice root: crap 
> >  Sat Feb 4 08:46:18 2017 user.notice root: crap 
> >  Sat Feb 4 08:46:58 2017 user.notice root: crap 
> >  
> >  Any help is always appreciated. 
> >  
>
> What exact version of ModemManager is this? i.e. 1.7.0 is built from 
> git, so from which commit id? I'd like to know if this very recent 
> commit was included in your build or not: 
> https://cgit.freedesktop.org/ModemManager/ModemManager/commit/?id=4e5d8d7e8c0ce16e31d3c98710361eed1cf9f87c 
>
> -- 
> Aleksander 
> https://aleksander.es 
>          
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