Conclusion
Suboptimal throughput can be a daunting issue that network enthusiast can face, especially when one is trying to upgrade/build better/the best home network one can afford. There are many causes for suboptimal network throughput, but one of the most peculiar symptom/sign is asymmetric throughput between upload and download. One of the correctable cause is “high to low network interface mismatch”. The solution to this issue is “flow control.”