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Upload Speeds Suddenly Low

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Upload Speeds Suddenly Low

My upload speeds have been consistently about 35Mbps, but as of a few days ago, they are less than 5Mbps. Download speeds remain consistently above 500Mbps. I have a 1Gps Xfinity plan.

 

I've rebooted the modem (ARRIS T25) multiple times, checked the connections for tightness, and ran the Xfinity online troubleshooting tests. I've attached a screenshot of the modem's upstream power levels.

 

Appreciate your thoughts on this. Nothing has changed on my end that's under my control. Has Xfinity possibly throttled upload speeds? Thank you.

Upstream.jpg