Samsung TV 1.5.5 & 1.5.6 versions lag and pixels on any media.

[rbjtech 4266]

I would try and keep in simple to start with - remove the two AP's and just run with the main Router/AP.    If that is stable on wifi - then you may find the AP's are all interfering/competing with each other, possibly changing channels dynamically etc - and you are actually getting LESS bandwidth or interupted connections as a result.   If an option, try lowering the power of the AP's, so they only cover a more limited range.   You may need to use heatmap/range software to actually map out the range of each AP  (or walk about with a strength meter on your phone) - ideally you want the signal to drop significanrly before the next AP picks it up.

Also work checking the TV is not trying to do any 'smart' wifi decisions such as band steering or anything like that.

 Wifi is not 'designed' for constant streaming on fixed devices - it will work, but a wired connection is always better for 100% reliability.

 

Edited August 14, 2023 by rbjtech