Pur E2 6.1 image for DM520HD

Hello

my english is litle bad sorry

i have install your image, and vorks perfekt, in streaming to vlc all channels,

i have litle problems to stream to mag infomir 233, some channel working in hd,

some channel not,

i se inn network speed ich 15mbit on channel not vorking, but no pic and sound, only channel name

channel is on same transponder too

do you have any idea?

kim