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[Bug 1436427] Re: Turning off WiFi doesn't set a route after the modem connects data

 

@Tony

Today I left home twice, once it worked fine, the other time I ran into
this again. This kinda matches my experience of running into this every
other time I leave home. Maybe a bit less. I would estimate it to about
40% of the times I leave my home. Reproducing it manually by turning
WiFi off doesn't trigger it as often as with walking out WiFi range.

For me it definitely doesn't recover on its own, at least not with just
waiting a few minutes. However, toggling flight mode on the phone
usually makes the connection recover for me.

IMO this is quite critical, and even if it would recover on its own
after a while, there's nothing more annoying than being on the go and
first having to toggle flight mode, or waiting 10 minutes before being
able to use the map, or quickly googling something.

Today for example we went for a walk, and after walking for some 20
minutes I wanted to look up the map. Pulled out the phone, the indicator
says "H", I open the map and it doesn't load. Knowing that mobile data
can be flaky at times, I waited for about 5 minutes for the map, keeping
on tapping the screen in order to not get the map app suspended. Then I
decided to toggle flight mode which then finally got me some map data.
By then obviously we already walked in some wrong direction and were on
our way back already. So this issue has the characteristic to always
strike when you quickly need some mobile data.

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https://bugs.launchpad.net/bugs/1436427

Title:
  Turning off WiFi doesn't set a route after the modem connects data

Status in the base for Ubuntu mobile products:
  New
Status in network-manager package in Ubuntu:
  New
Status in network-manager package in Ubuntu RTM:
  Confirmed

Bug description:
  I just switched off WiFi in order to test if the device switches
  successfully to a mobile data connection. After disabling WiFi the
  indicator showed "H" in no time. So it would seem all is fine. I
  opened the browser and no data went through.

  Here's the output of "ip route" and "list-contexts":

  phablet@ubuntu-phablet:~$ sudo ip route
  [sudo] password for phablet: 
  phablet@ubuntu-phablet:~$ /usr/share/ofono/scripts/list-contexts 
  [ /ril_1 ]
  [ /ril_0 ]
      [ /ril_0/context1 ]
          Name = E-Plus Web GPRS
          Settings = { Netmask=255.255.255.0 Address=10.121.30.213 Interface=ccmni0 Method=static DomainNameServers=212.23.103.8,212.23.103.9, Gateway=10.121.30.213 }
          Username = eplus
          IPv6.Settings = { }
          Protocol = ip
          Active = 1
          Password = internet
          Type = internet
          AccessPointName = internet.eplus.de

      [ /ril_0/context2 ]
          IPv6.Settings = { }
          Name = E-Plus MMS
          MessageProxy = 212.23.97.153:5080
          MessageCenter = http://mms/eplus/
          Username = mms
          Settings = { }
          Protocol = ip
          Active = 0
          Password = eplus
          Type = mms
          AccessPointName = mms.eplus.de

      [ /ril_0/context3 ]
          Name = ___ubuntu_custom_apn_internet
          Settings = { }
          Username = 
          IPv6.Settings = { }
          Protocol = ip
          Active = 0
          Password = 
          Type = internet
          AccessPointName = 

  phablet@ubuntu-phablet:~$ system-image-cli -i
  current build number: 21
  device name: krillin
  channel: ubuntu-touch/rc/bq-aquaris.en
  last update: 2015-03-13 17:11:07
  version version: 21
  version ubuntu: 20150312
  version device: 20150310-3201c0a
  version custom: 20150216-561-29-186

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References