1164916 - Firefox Hello call fails during Wifi handover

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: Gaia::Loop, defect)

Description

[Diego Wilson [:diego]]

Tested on FxOS v2.1

STR:

1. Connect to a Wifi network with multiple access points [1].
2. Start Firefox Hello call.
3. Walk from one access point to another

Result: The call disconnects with a “bad network” message.

FxOS itself seems to handle Wifi AP handovers smoothly. Playing a youtube video is smooth when moving between APs.

[1] http://www.dummies.com/how-to/content/wireless-network-routing-with-multiple-access-poin.html

Comment 1

[Diego Wilson [:diego]]

(In reply to Diego Wilson [:diego] from comment #0)
> Tested on FxOS v2.1

Sorry, I meant FxOS v2.2

Comment 2

[Dylan Oliver [:doliver]]

Diego, are you thinking that this is a problem in the underlying WebRTC code which is being exposed by the Hello app?

Comment 3

[Diego Wilson [:diego]]

(In reply to Dylan Oliver [:doliver] from comment #2)
> Diego, are you thinking that this is a problem in the underlying WebRTC code
> which is being exposed by the Hello app?

Sorry, I'm not familiar enough with the networking side of the platform or the app to answer that.

Comment 4

[Dylan Oliver [:doliver]]

Maire, are there any known issues with WebRTC in this area?

Comment 5

[Maire Reavy [:mreavy]]

If moving from one AP to another causes an IP address change, then that would require an ICE restart, which is covered by Bug 906986.  If there's no IP address change, then this should work, and more investigation would be needed.

Comment 6

[Keven Kuo [:kkuo]]

Hi! Vincent,

Could your team help to take a look? thanks

--
Keven

Comment 7

[Henry Chang [:hchang]]

I am curious how it would behave like on desktop. If on desktop firefox it could handover smoothly then
there might be something we can do on firefox os.

Comment 8

[Vincent Chang[:vchang][changyihsin]]

Just try to connect to "Mozilla Guest" in the office with Flame device, the ip adress doesn't change when wifi roaming to different AP with the same SSID.

You can tell from wpa_cli command, the bssid is changed but ip address is the same.

Connect to supplicant  - "wpa_cli -p /data/misc/wifi/sockets/ -i wlan0" 
Show connection status - "status"

Comment 9

[Dylan Oliver [:doliver]]

Vincent, has your team had any success trying to reproduce this on desktop?

Comment 10

[Diego Wilson [:diego]]

(In reply to Dylan Oliver [:doliver] from comment #9)
> Vincent, has your team had any success trying to reproduce this on desktop?

Dylan,

FWIW this was reported by a CAF tester. I recently tried reproducing it myself but switching APs worked fine for me.

I'm trying to figure out if this could be a tester setup issue.

Comment 11

[Dylan Oliver [:doliver]]

For now then (and because we're not blocking on Hello app issues), I'm going to resolve this as worksforme and you can re-open if it is reproduced.