Upload speeds keep dropping throughout the day

@XfinityThomasC​ Thanks for getting back Thomas, and yes I did a chat with one of your agents and he ran some tests and said everything looked good on his end.  The issue like I was trying to tell him is yes while it looked and worked fine now it randomly happens where uploads will just drop out of nowhere. Here is the reference number to that chat if it helps you out in anyway, [EDITED: PII] and I am using your xfinity white modem that supports gigabit+ speeds.  I am thinking there is some kind of noise, bad node somewhere or just a bad modem, but i have no idea honestly, this used to not be an issue before when I was on the 1gig plan before with the old modem from your company.

Thanks for the additional details, @Sin26! Let's take a closer look and see what we can find out. Please send a direct message to us by clicking the chat icon in the upper right corner of the page, click on the pen and paper icon, then enter “Xfinity Support” in the “To” section. Please include your full name and complete street address. Thanks! 

@user_b5888e​ I truly hope this is not the case it is very odd though that the download is fine but uploads drop like that and I know I am not the only one having this issue I have seen other customers having similar issues.

Hi there and welcome to Comcast @user_b5888e. I am sorry to hear that you are having troubles with your upload speeds. You are in the right place and we are happy to take a look at your account. When you are experiencing this issue, are you on a hardwired connection or wired connection?