On recent vivid images running on Nexus 5 switching between WiFi and mobile-data and back leads to broken networking where device can't establish a network connection.
This bug was discovered on ubuntu-touch/vivid-proposed #169-170.
And this bug is absent on ubuntu-touch/ubuntu-rtm/14.09 #17.
I suppose this bug is very similar to https:/ /bugs.launchpad .net/ubuntu/ +source/ network- manager/ +bug/1426122 , but I can't give such kind of technical information.
I just can repeat from that bug:
On recent vivid images running on Nexus 5 switching between WiFi and mobile-data and back leads to broken networking where device can't establish a network connection.
This bug was discovered on ubuntu- touch/vivid- proposed #169-170. touch/ubuntu- rtm/14. 09 #17.
And this bug is absent on ubuntu-