Pixel streaming can't run on mobile phone in 4G/5G

Development Programming & Scripting
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1

Hey guys,When I use my mobile phone as the client to access the pixel streaming service, if the mobile phone is connected to wifi, everything is normal；If the mobile phone is connected to a 5G/4G network,can also see the “Click to start” button, but after clicking it, I will see a black picture without a 3D rendering.

I use UE5.1

Thanks for any help!