Ubuntu
network-manager package

Phone doesn't use WiFi DNS when also connected to cell

Bug #1456112 reported by Peter Cliff on 2015-05-18

This bug report is a duplicate of: Bug #1270189: Ubuntu Touch devices are using cellular DNS servers over wifi connection. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Canonical System Image	New	Undecided	Unassigned
	network-manager (Ubuntu)	New	Undecided	Unassigned

Bug Description

Apologies if this is covered elsewhere but I couldn't find it and wasn't sure what package would cover it so opted for system-settings. It is a fairly specific bug given not everyone will be using BT wifi, but probably the issue will arise with other ISPs.

When I turn on wifi at home, my phone connects to the Hub fine but Web access is limited because the phone continues to use the DNS settings from the cell network (I think). I get an error from BT about using external DNS rather than those it supplies (required for the child filter). I haven't tried disabling the filters yet but I could I suppose.

If I turn on flight mode and then re-enable wifi everything works fine but then I don't get phone calls, etc. of course.

Turing off flight mode breaks stuff again.

The phone is a BQ Aquaris E4.5 Ubuntu Edition running Ubuntu 14.10 (r22) Image Part 20150508 Ubuntu Utopic Unicorn (Development branch) armhf(20150508-031218), Device Image part 20150505-db7b5bd, Device build description KRILIN01A-S14A_BQ_L100EN_1022_150508.

Tags:

Sebastien Bacher (seb128) on 2015-05-21

tags:	added: bq
affects:	ubuntu-system-settings (Ubuntu) → network-manager (Ubuntu)

Revision history for this message

Mathieu Trudel-Lapierre (cyphermox) wrote on 2015-05-21:

Could you attach /var/log/syslog from the phone when it's connected to both wifi and 3G? We should be able to know from there whether it includes all the nameservers it should.

From there, it's up to whichever responds faster among all the nameservers, which will be used.

Revision history for this message

Peter Cliff (pixelatedpete) wrote on 2015-05-25:

log file as requested Edit (42.0 KiB, text/plain)

Thanks replying and apologies for the delay - busy week! Finally found some time to dig out the log (learning a thing or two about adb on the way which has been good). I whittled it down to what I hope are the important parts - shows connecting to Vodafone then BT WiFi. Looks like both nameservers are there but it still didn't work connecting to various Web pages.

Revision history for this message

Robie Basak (racb) wrote on 2015-07-22:

This looks like a duplicate of bug 1270189.

Revision history for this message

Peter Cliff (y-pete) wrote on 2015-07-22:

@Robie Basak - yes. Sounds like the same thing. This was not fixed by the 15.04 OTA. As I've only one phone I ended up flashing BQ's Android image to my Aquaris E4.5 (Ubuntu Edition) now so cannot test further.