Question / Help Troubles with stream at all settings (buffering, lags)

[Rubio]

- Download/Upload: 25000/5000 kb/s
- CPU: Amd FX-4100 Quad Core, 3.6 GHz
- GPU: MSI Radeon HD 7790
- Motherboard: Gigabyte GA-970-UD3
- RAM: 12 GB
- Windows 7
- Resolution: 1920x1080 with 1.5 x downscale to 1280 x 780

Hello guys,

I have troubles with my stream. Whenever I stream, regardless of the settings it will buffer every couple of seconds and also freeze occasionally. So I tried a lot of possible combinations of settings and the only thing that kinda helped was lowering my encoding max bitrate to exactly 1000 kb/s. Even at 1200 kb/s it would buffer every 5-10 seconds for like 5 seconds. My download and upload rates are stable throughout the whole day and I don't ever have other issues with it. I am not dropping any frames (0%). Also I am not recording while streaming and no other major software is running at the same time. So here is what I tried amongst other things:
- Encoding: changing the max Bitrate (1000 - 3000, stepwise), custom buffer sizes on/off (usually +300 kb/s)
- Broadcast Settings: Minimize Network Impact on/off
- Video: Resolution Downscale from 1.5 to 3.0 stepwise; FPS: 20, 25, 30
- Advanced: x264 CPU Preset from veryfast to superfast
I tried many possible combinations of these settings and it always buffers every few seconds. As a source I am using Game Capture. CBR and CFR are always checked. I don't really know what part of the settings or hardware is causing these lags. Here is a recent log file which I hope will help.

Edit: Here are the testmy.net results http://pastebin.com/hAvwJQZQ

 

[Harold]

If you're not dropping frames, buffering is being caused entirely by your route to the viewer servers.
Twitch routes ALL viewers of low-viewer non-partner streams through the san fransisco datacenter, regardless of the viewer's location.

No amount of framerate or resolution tweaking will solve it.

 

[Rubio]

Thanks for your answer, Harold. So does that mean it is an issue with my ISP and their routing?

 

[Harold]

Specifically on the "Watching from twitch" side.

 

[Rubio]

So in case someone with a similar problem runs into this thread and didnt know about it yet like I did, Harold was correct with what he said. Other streaming services (tested 2) stream my broadcast without any issues at fairly higher settings and quality than what I tried on Twitch. For non-partners especially from Europe, I guess, Twitch might not be the best address to stream.