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[Bug 1378416] Re: [krillin] disable WiFi, Mobile Data not available

 

Reproduced. syslog attached. Steps:

1. Start the phone
2. Check that you have network connectivity
3. Disable WiFi
4. Check that you cannot connect to network although cellular data is ON.

The mobile context was up, cnmi0 was up, phone was attached, but "ip
route" showed nothing.

Adding a default route for ccmni0 made "ping 8.8.8.8" work.

Recent research has shown that rild in krillin sets ups ccmni0, but does
nothing with routes, so this points to NM, as it is the one that should
add the route.

$ system-image-cli -i
current build number: 270
device name: krillin
channel: ubuntu-touch/ubuntu-rtm/14.09-proposed
last update: 2015-04-14 16:00:29
version version: 270
version ubuntu: 20150410.1
version device: 20150408-4f14058
version custom: 20150409-665-29-206


** Attachment added: "syslog"
   https://bugs.launchpad.net/ubuntu/+source/ofono/+bug/1378416/+attachment/4376062/+files/syslog

** Changed in: network-manager (Ubuntu)
       Status: Expired => Confirmed

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https://bugs.launchpad.net/bugs/1378416

Title:
  [krillin] disable WiFi, Mobile Data not available

Status in network-manager package in Ubuntu:
  Confirmed
Status in ofono package in Ubuntu:
  Invalid

Bug description:
  STEPS:
  1. Install RTM88 on krillin
  2. Use the system a litlle on wifi
  3. Pull down the indicator network
  4. Disable Wifi

  EXPECTED:
  I expect the system to seemless flip over to using 3g

  ACTUAL:
  I got no page (see screen shot) I tried pinging google and got ping: unknown host google.com

  ip route gave no feedback
  phablet@ubuntu-phablet:~$ nmcli dev
  DEVICE     TYPE              STATE
  /ril_1     gsm               disconnected
  /ril_0     gsm               connected
  wlan0      802-11-wireless   unavailable

  Devices is correct.

  The debug.txt in comment #3 clearly shows that mobile data is
  connected via the list-modems output and list-contexts output.  This
  output also agrees with the nmcli output which shows /ril_0 as
  connected.  The smoking gun here looks to be the routing table, which
  is empty.

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References