Although there is no internet connection speed issue on other mobile devices and computers connected to the same modem, the internet download speed is 2 Mbps and the upload speed is 9 Mbps on my computer. Both Windows 10 Pro and MacOS are installed on the same computer. When I switch to MacOS, the internet download speed is 75Mbps as it should be. I've tried the most common solutions suggested on Microsoft's site and other sites on the subject. None of them worked out. I reinstalled Windows 10 by protecting the files and programs on my computer, but there was no solution. I also shut down all non-Windows applications and services that started automatically when the computer was booted, again, there was no solution. I tried 7-8 more actions without any solution. My computer did not have such a problem 2 weeks ago. It started suddenly.
Windows 10 Pro was upgraded recently to version 1909. Even though, I'm not sure I suspect this might be the problem.
I have gone through the list of troubleshooting on that link. However, none of them worked. I'm adding a log file here in case it may show any sign of failure and further suggestions. The only thing I noticed is: