On other interesting point is that settings for the mobile data context are a bit odd in that the gateway and address returned from the operator are both the same:
Interface=ccmni0 DomainNameServers=149.254.230.7,149.254.192.126, Gateway=10.129.20.112 Address=10.129.20.112 Netmask=255.255.255.0 Method=static This doesn't appear to cause problems when the mobile data connection is initially configured, however for some reason when WiFi is disabled it is causing an issue. On initial configuration, we setup up the route for mobile data and then set it as default. When WiFi connection, we setup a route for WiFi, then make it the default route ( ie. we don't remove the mobile data route ). When WiFi is again disabled, we remove the WiFi route, and attempt to set the mobile data route as the default again. It's during this logic that the failure occurs. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1378416 Title: turned off wifi to test 3g I see H in the indicator but I recieve nothing from the system Status in “network-manager” package in Ubuntu: Confirmed 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1378416/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp