Network Streams stuttering

[MrYellow]

Hi Folks,

I've been trying for a couple of months now to solve a problem.

Network Streams (Twich.tv in particular) keep stuttering, regardless of resolution. No matter what I try, it just doesn't work. The thing is: All streams work fine, even in HD, on my local PC workstation.

On the Raspberry PI 2, they will stop every minute or two and sometimes it doesn't even recover. If it recovers, then the whole stream plays very rapidly (not at normal speed).

I have tried:
* Increasing/Decreasing cachemembuffersize
* Increasing/Decreasing readahead factors
* All possible combinations of settings (SW acc. /HW acc. with all modes).

Also, there's nothing in the logs really.

I have monitored CPU and RAM usage when the stuttering appears, but they're pretty low ALL the time. The PI is connected via LAN to an Archer C9 Router with plenty of bandwidth and with a HDMI cable to the TV.

I am really out of ideas by now. Please help.