My is Xfinity Stream app buffering on local stations and major networks?

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@gfichman wrote:

Xfinity Stream app buffers on my local stations and major networks.  Otrher channels and apps NEVER buffer.  Local xfinity have no answer. 

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are you on your own home wifi when this happens or other's wifi or on cell data? the regular cable channels are in mpeg2 720p which streams better than some of the live channels in mpeg2 (twice the size). in addition some cell data carriers restrict data rate flow for mpeg2 streams.