** Helpful methods to diagnose problems ...
- DSL speed test (just to confirm your Local connection loop is not saturated, and you are being Throttled Down, by your ISP).
- Check "Open Channels", compared to channels from the Providers servers. (203-CBSNews/ 227-Aljazeera/ 215-Weather Ntwk.)
*If you receive these without any glitching etc., you can remove your equipment and your ISP(Unless they are blocking or throttling .ts streams).
- HD channels compared to SD channels, can indicate your equipment may be doing something in the background (using resources), you are unaware of (Updates etc.)
- Weather & environmental impacts. All of the streams from the servers, are derived from mostly Satellite sources (directly or indirectly but originating from). If problems are with US feeds, see if there are extreme weather events occurring in that geographical area, for example.
Flooding can also disrupt Internet Routing by causing network traffic to be re-routed, causing traffic bottlenecks.
(This usually will not cause a problem for most internet traffic (Netflix, UTube, Facebook etc.), but will be evident with applications like LiveTV (.ts) streaming, online Gaming etc.
Finally, the 1st thing to check is these Forums, for other users having the same problems.
As for you not knowing much about it, it sure seems like you know more than most!!
So now you know to post more info about your setup, your service, the channels, the time of day, and possibly your geographical location.
As for your problem..., sounds like the data is getting corrupted intermittently, causing the data block decoding to stop, causing replay of the buffer content while the next block of data is being decoded and loaded into the buffer. So I suspect satellite rain fade.