Slow uploads during the daytime
I'm on the 300/10 Mbps plan (300 down, 10 up)
I get, pretty consistently, 300+ Mbps down, so no issue there.
But the upload speed I get varies massively during the day, often dipping to 1 Mbps, as demonstrated by ookla command-line speedtest. I check 3 nearby locations (comcast, FastMetrics & Unwired) every 30min, and I see the same behavior every work-day (also, school day):
- 12 Mpbs upload for all non-work, non-school times
- Dip to 1-2 Mbps during work/school hours
- Typically a partial recovery at lunch time
I don't imagine any of my devices (e.g. modem, wifi-router) are causing the slowdown. The speed is measured from a wired device. I get very similar behavior from all 3 upload locations. The house often has 1 to 3 devices doing zoom, but this typically consumes only about 0.5 Mbps upload. The upload speed tests don't change depending on how many zoom calls we're doing.
In the picture you can see the upload speed drop every day this Tue - Thu, starting ~8am, with a noon recovery, and a messy afternoon recovery. The upload speed stays flat evenings, and all weekend.
Xfinity, can you make some adjustments?