Hello, 

I have buzztv xrs 4900, UHD Channels not working on Buzztv 5, only HD channels working 

Watching UHD channels the picture suddenly stops or runs slower
What is causing this problem? And how can I solve it?

Thanks for your help 

they are working fine for me on many servers. try to switch player and see if that helps. it might be server related. 

I have in configuration settings only secondary or default, with secondary working UHD Channels, but audio of HD channels not working 

1 hour ago, BuzzNutzer said:

I have in configuration settings only secondary or default, with secondary working UHD Channels, but audio of HD channels not 

What do the audio settings say ?

Disabled?

Yes Disabled

It shows you have another option to change it to

when I choose the other option come "stream error"

Send allaboutbuzz a pm with all your info and the issue you are having and he can look at it further