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Message #70661
[Bug 1418077] Re: After connection drops, mobile-data takes ~5m to re-connect
** Changed in: canonical-devices-system-image
Status: In Progress => Fix Released
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Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1418077
Title:
After connection drops, mobile-data takes ~5m to re-connect
Status in the base for Ubuntu mobile products:
Fix Released
Status in network-manager package in Ubuntu:
Fix Released
Bug description:
If the mobile data connection drops due to signal loss or modem reset
( eg. changing radio technology, setting 3g slot, ... ), there's a
delay of 5m before NetworkManager attempts to re-connect.
The original bug pertained to changing the radio technology ( which
causes the modem to unregister and then re-register using the new
technology ), however the problem is more generic. The steps to
reproduce focus on this case, as this is the easiest way to get the
modem to drop the connection for long enough for the problem to occur.
Forcing the modem to disconnect via wrapping the device in tin-foil
should also trigger the problem.
Steps to reproduce:
1. Confirm cellular data (disable wifi)
2. Change TechnologyPreference on online SIM
3. Confirm no cellular data
4. Wait ~10 minutes
5. Confirm cellular data
What happens:
Changing something on the modem causes cellular data to disappear for 10 minutes
What should happen:
It should behave as before, i.e. cellular data should come back immediately
current build number: 97
device name: krillin
channel: ubuntu-touch/devel-proposed
alias: ubuntu-touch/vivid-proposed
last update: 2015-02-02 12:48:25
version version: 97
version ubuntu: 20150202
version device: 20150128-5379bdb
version custom: 20150202
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References