What do you mean by 'do not play'? Are you saying that streams play but stop and start?
If streams do not play at all, do you have a dns4me or similar account to avoid geo-blocking?
I've just checked on my Windows 10 machine using Firefox v.54.0.1 (32bit) and URL is streaming OK at present.
The news at is also playing faultlessly.
Try them from the links I've provided.
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