I'm seeing this peculiar message in syslog:
Oct 7 13:22:03 ubuntu-phablet kernel: [14655.999891] (0)[1956:rild][ccci/net] (1)CCMNI0 close
I'm not sure why rild decides it suddently wants to turn ccmni0 off; but that could well explain why there is no ip address on the interface, and no routes to support setting the default gateway back to mobile later on.
I don't think it's requested by NM; because there is earlier evidence in the same log that when NM asks for it; you instead see a message like:
(0)[1956:NetworkManager][ccci/net] (1)CCMNI0 close
Along with NM's own logs for the disconnection; but I'll keep looking at that side anyway.
Reassigning to Tony for now, until we can verify if it's rild that is doing something it shouldn't.
I'm seeing this peculiar message in syslog: rild][ccci/ net] (1)CCMNI0 close
Oct 7 13:22:03 ubuntu-phablet kernel: [14655.999891] (0)[1956:
I'm not sure why rild decides it suddently wants to turn ccmni0 off; but that could well explain why there is no ip address on the interface, and no routes to support setting the default gateway back to mobile later on.
I don't think it's requested by NM; because there is earlier evidence in the same log that when NM asks for it; you instead see a message like: NetworkManager] [ccci/net] (1)CCMNI0 close
(0)[1956:
Along with NM's own logs for the disconnection; but I'll keep looking at that side anyway.
Reassigning to Tony for now, until we can verify if it's rild that is doing something it shouldn't.