BT subscription channels breaking up
Hi
We've noticed for some weeks now that the BT subscription channels (standard def) often break up or pixelate. Sometimes they'll stall for many seconds before resuming. We have no issue with Netflix or the other players. Rebooted many times and still the same. Any ideas or advice please.
We've noticed for some weeks now that the BT subscription channels (standard def) often break up or pixelate. Sometimes they'll stall for many seconds before resuming. We have no issue with Netflix or the other players. Rebooted many times and still the same. Any ideas or advice please.
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@Daniel....I get 50Mbps, I've tried the reset, it's a T4000, the channels can be OK for minutes then intermittently break up/pause/pixelate, (whether watching live or recorded) our two boxes are connected to powerline adapters (one upstairs, one downstairs) both behave similar
@Tim C....I'll drop this onto the BT forum too.
What I don't get if it was a powerline adaptor issue, is that Netflix and other players work perfectly.
the subscription channels use IGMP multicast whereas the players use variations on standard TCP/IP. The difference is that multicast is a ‘fire and forget’ transport and their is no mechanism for retransmission of sopped or missing packets whereas this is built in to TCP and happens invisibly in the background. Multicast is used because it’s a ‘one to many’ protocol so the sender doesn’t worry if you’ve received the packets error free. In other words the Link at your end must be solid to ensure minimum dropped packets. Power line unfortunately is susceptible to mains spikes and noise which is why it isn’t really an acceptable means of connecting YV boxes to use subscription channels. It is for similar reasons that they don’t support WiFi.
Wilf.
@WilfH. You can edit your post by clicking on the down arrow at the top right hand side.
PLAs in my view are simply not an appropriate solution for YV installations.
But is this a BT Home Hub, or a third party router that may not have its QoS optimisation configured correctly?
And while you have repeatedly rebooted the boxes, @DanDan, have you ever tried rebooting the router and the PLAs? If not, best to try that next.
Certainly, though, if that brings no improvement, your next step is to contrive to bypass the PLAs temporarily, either by moving a YouView box near to the router or by using a long Ethernet cable, and seeing if the problem goes away, thus implicating the PLAs, or if it remains, thus implicating the router.
Its a BT HH5 with PLAs supplied by BT.
I would prefer to permanently wire directly, but that is not an option at present. I've had these several years without a problem.
A month ago the problem appeared.
A BT engineer fixed some dodgy wiring at an external street box. All was well.
The problem rose again hence resurfacing this.
The problem appears to have gone away again without any active involvement from myself.
If and when it resurfaces, I'll wire it directly to see what can be ruled out/in
I'll try the 17070 number at the time to see if there is any noise on the line.
Wilf
If you have a mate who's a Sparky (electrician) ask him to look at your circuit box, particularly the mains run between the upstairs and downstairs. Also keep an eye out if the transmission breakup only happens when its raining, as that would mean you have a break in your line.
Merry Christmas mate.
All advice duly noted. Just a question for you noted sages. We currently subscribe to the SD channels. I can imagine that a HD subscription would exaggerate the problem if it is data dropping versus time. Is this thinking correct ?
All the very best to you, Roy and all the helpful community members.