hd channels freezing my box

[jubz]

Bbc 1 and 2 itv 3 channel 4 and 5 in hd all freeze my and glitch my box l, also bt sport 1 hd etc also does the same thing, why does this happen

[joe516]

Bbc 1 and 2 itv 3 channel 4 and 5 in hd all freeze my and glitch my box l, also bt sport 1 hd etc also does the same thing, why does this happen

usually the server your connected to is oversubscribed

[DW190]

usually the server your connected to is oversubscribed

Not when its doing it on BBC & ITV. More like cabling, tuner or dish/lnb.