“I’m somewhat surprised to see the wget test with a transfer rate of ~30KB/s.”
Caloiaro pays AT&T for an “unlimited” 100Mbit business plan and was well under his 50GB of priority data. Speed tests showed 21Mbps, but a 1.68MB Strava file from Cloudfront crawled at 30KB/s. The same file came down at 1.4MB/s on Verizon and 1.7MB/s through his AT&T phone hotspot. Changing the router APN forced a new login to AT&T and the slowdown stopped. That is not congestion. That is a policy, and AT&T has not said whose.