I was able to download INSSIDER 3.2.3.1
here. It says channel 6 + 10. Dual channels?
INSSIDER recommended that I changed to channel one. I ran a bandwidth test, changed, cleared my cache, and tested again.
It dropped from 1 Mbps to 800 kbps. Strangely, both tests were over 2 Mbps upstream, so I looked into that.
Someone on Quora said that if that is your situation, you should replace your router. They are not the boss of me!
My 4.5 year-old phone in desktop mode got an even faster upload speed, but 28.35 Mbps down--from the same spot!
My $300 two year-old laptop was 28.24 Mbps.
I feel like I have done far more troubleshooting than should be necessary on a new computer and should make this Lenovo's problem.
This guy said he had this problem until he disabled WMM under QoS, but he reported that all of his devices using WiFi were affected:
https://www.ybrikman.com/writing/201...t-fast-upload/
He explained that Comcast marked everything 8--Priority--the second lowest. He changed his firewall to make everything 0, best effort, and it was much better, but not as fast as 46, Expedited Forwarding.
I still think this is the laptop, not the router.
Windows says this is the latest driver, but I found a more recent one at Lenovo.com--but I could not download it, not in Brave, not in Vivaldi, and not in Internet Explorer, or at least I did not wait around to download 15.6 MB at 10 kbps.
I disabled the WiFi and got 88 MPH with ethernet. I reenabled WiFi and got 87.99 with ethernet. I downloaded and installed the driver, but Windows still shows the old one. I rebooted and tried in three different browsers. Brave is the fastest, then Vivaldi, and Chrome came in last.
I do not know why they vary so much, but the slowest was still dozens of times as fast as before.
I wish that I had figured out this a day or two ago, you know, before that test.