Internet Speeds Fluctuating (Mainly Upload Speed) - XFinity

#1
Hello. I sometimes have an issue where my upload speed will flucuate and Speedtest will show me results as low as 1.0 Mbps to as high as 11.0 Mbps. It should be staying consistent around the 10-11 Mbps mark, but it'll go as low as 1.0 Mbps for a while running multiple tests. Right now, I am experiencing this issue with very inconsistent upload speeds. My download speed is fine, sitting at 170 Mbps. I am hard-wired to the computer.

Downstream:
1st Attempt(Low Upload Speed): http://imgur.com/a/zQ6UV
2nd Attempt(Low Upload Speed): http://imgur.com/a/6xbAa

Upstream:
1st Attempt(Low Upload Speed): http://i.imgur.com/vF3ub7C.png
2nd Attempt(Low Upload Speed): http://i.imgur.com/vF3ub7C.png

CM Error Codewords:
1st Attempt(Low Upload Speed): http://imgur.com/a/snneB
2nd Attempt(Low Upload Speed): http://imgur.com/a/tF1re

Cable Modem: http://i.imgur.com/5geE4rZ.png

WiFi Diagnostics of All Networks Around Me: http://imgur.com/a/GQwHk
 
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