im not saying people dont have problems, im saying that not everyone has those problems like you eluded to. i dont have any problems, even though we are all getting the streams from one source.
since we all use the same source, no matter the credentials, and i and probably others have no issues, maybe its another problem.
a network problem? i have a good business class Ubiquiti router/switches/access points network. maybe thats it.
maybe its the dns servers you use? who knows.
my server is on a windows box, not a shield, or other "low powered" device. maybe thats it.
or maybe cable credentials work better than streaming services on their back end, thats a possibility.