Mixer Streamer: Problems Streaming Game Video!

So im a part time mixer streamer paying for a 600/30 Enterpise tier an im having issues streaming my gameplay to Mixer! I contacted OBS support an they said it was a ISP issue becuase they looked at my Log File i provided them an there was no issues on my PC when streaming gameplay at 720p HD at 60 Frames Per Second! Which is 4500 KBPS! Im always hardwired with a enternet cable connected to my Buinsess Modem! I did have new lines connected. My modem is connected straightly fresh to the pole! You can even read what dropped frames are on the OBS site! 

OBS Infomation to Comcast Buisness Techs on "Dropped frames": https://obsproject.com/wiki/Dropped-Frames-and-General-Connection-Issues

Nakajima Megumi was my OBS Specialist! I go as xIndicaxHigh

The Mixer server i stream my Gameplay to is US-Seattle! My Latency was really good! 10-8ms!

Asked Naka is changing my bitrate would fix the dropped frames issue but! That was not the case!

I dont know what the issue is! Its not my hardware becuase obs doesnt report dropped frames due to my encoding on my PC hardware! My Processor & GTX can stream 720p60 easy! Over a landlined connection which i am using! Im Honestly out of ideas an looking into moving to the better provider if this doesnt improve! I did sign a contract but im not gonna pay for a contract termination fee if im not getting the performace i was promised to get! I only have 2-3 devices on at a time! When im streaming i only have 1 which is my streaming & gaming pc! Please fix this issue!