Zenfone 5 ZE620KL Cast application does not work in Miracast infrastructure mode

rakeshguttalrakeshguttal Level 1
edited October 2020 in ZenFone 5 Series

Please tell us some basic information before asking for help:

  1. Model Name: ASUS_ZS620KL/ ASUS_Z01RD
  2. Firmware Version: 4.9.112
  3. Rooted or not: Not rooted
  4. Frequency of Occurrence: Always
  5. APP Name & APP Version (If your issue relates to the app): Cast

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.

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I am trying to validate Miracast sink implementation related to Miracast Infrastructure discovery. I am using Miracast R2 supported ASUS source device. We suspect that Asus phone device does not do the following:

-sending mDNS query for PTR lookup containing service type _display._tcp.

-sending mDNS response for PTR query from sink device containing service type _displaysrc._tcp.

Because of the above reason Miracast is not working in infrastructure mode.

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Steps to reproduce:

1. Connect Asus phone to WiFi Network. Say "TestAP"

2. Connect the projection device to same WiFi Network "TestAP"

3. Go to Cast application in settings, and tap to enable [Wireless Display].

4. Asus phone unable to discover projection device in Infrastructure Mode.

According to Miracast R2 Wi-Fi_Display_Technical_Specification, Expected behaviour is projection device and Source device should discovery each other using(mDNS/DNS-SD) mechanism in Infrastructure Mode. So we suspect asus phone is not registering “displaysrc._tcp" service and also not discovering "display._tcp" service.

can you please let me know if any settings need to be enabled for cast functionality to work using infrastructure Mode ?

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