100/10 plan, only 2 mbit upload

Hello, this issue seems to have started sometime yesterday.

It was only noticeable to me once I found out my voice chat (discord) and my game experienced severe lag. Ran a speedtest and found that my upload speed is only 1/5 of the advertised speed. To me this is unacceptable. My upload speed is more or less at acceptable speeds.

Restarting router did not help. Restarting modem did not help. Having Cox agent restart modem did not help. Connecting directly to modem did not help. 

Modem signal upstream and downstream look nominal. 

https://imgur.com/hFOIccY

Speedtest.net:
https://imgur.com/OlXe9Zu

https://imgur.com/iefRReO