High latency on upload (1gig internet plan)

@XfinityFrank​ 23.8 Mbps according to his results posted above.

I have a similar situation but my connection is 800 Mbps download and 20 Mbps upload. The upload is bad too.

https://www.waveform.com/tools/bufferbloat?test-id=967c164d-1780-45cc-87c9-852e7d7e075e

@cruiserusa​ I removed my ASUS router and conected my PC directly to the modem. These are the results:

https://www.waveform.com/tools/bufferbloat?test-id=24f34f1a-0a47-4ce0-8721-3e4acf3e9b9e
https://www.waveform.com/tools/bufferbloat?test-id=1d760c17-ad82-4fb1-b349-515adc9dff8f
https://www.waveform.com/tools/bufferbloat?test-id=05afa804-0193-48e6-a45b-428a81f96a1e

@cruiserusa Thanks for reaching out about your upload speeds. We can definitley troubleshoot with you to help. I understand you have removed your router did the speed change? Do you have any additional devices connected such as a splitter or any extenders? Do you own your modem or are you renting ours? 

Are multiple devices experiencing the same speeds?

@XfinityKei​ the issue is the high latency on upload, please see Active Upload in ms (miliseconds) on the results. The issue is not the speed.

I removed the router and the latency on upload is still high around 200~400.

There's no splitter. The cable that comes from the street goes into a connector inside a external box and it conects to the cable that goes inside the house and then to the modem.

I own the modem Arris SB8200.

@cruiserusa  

This link https://www.xfinity.com/support/articles/internet-connectivity-troubleshooting has great information on how to troubleshoot your internet connection, give these steps listed a try.