Only one stream found when no WiFi is available (Android)

[pmaanen]

I am currently maintaining an application that records LSL streams on Android using liblsl 1.16.2. Recently we noticed that whenever we open stream outlets (in another app) and wifi is disabled or no wifi network is available, our recorder only sees one stream, I could also replicate this behaviour in a minimal example. The previous version of our app using an ancient version of liblsl (1.13) does not have this problem. I have the feeling this is somehow related to #204 and possibly #92. Acquiring a multicast lock solves the problem on some devices but does not solve the problem on others.

[pmaanen]

The offending commit is 062dc6e. Unfortunately I do not know enough about networks to understand what went wrong.

[cboulay]

liblsl v1.18.0.b3 includes #282, which directly addresses the “only one local stream is discovered” failure mode. Same-machine discovery now also queries each stream's individual service port instead of relying only on a shared UDP port, where a unicast query may reach just one outlet. A regression test verifies discovery of multiple local outlets with machine-only discovery.

Closing this as likely addressed by that change, rather than claiming verification on the affected Android devices. Please rebuild the Android resolver/recorder against the beta tag and retest with multiple outlets and Wi-Fi disabled. The release does not include a prebuilt Android library.

If the problem remains, please comment here so we can reopen it, including the device/Android version, exact liblsl builds on both sides, relevant configuration, and an updated minimal reproduction (the HelloResolver example would be useful). Thanks for isolating the original regression.