running atv 5,1 some time i put box on for sly channels screen is black , do eventually come on , can be five - 10mins so annoying any fix , FTA always work, working fine switch to bbc for awhile when i come back to sly black screen , doesn't happen all the time , but like to fix this . not my internet as have openbox and i check this to see if on , that's ok , but do have different line on openbox , is a server problem lines from different servers