I upgraded my internet connection to 20/5 today. However, I was only able to get about 5 Mbps down while wireless on one of my computers. The other two were getting about 19.6. I updated my drivers and checked every setting I could think of but could not improve the speed.
So I called Verizon, my internet service provider. The tech support person I spoke with was great. He directed me to a site called www.speedguide.net and had me run a tool on the left side menu called TCP/IP Analyzer. After running the test he noticed that my RWIN was very low. It was at 17,640. He said it should be over 200,000. Yea, that's a significant difference. Just under the Analyzer test is a TCP/IP Optimizer. I ran the optimizer, robooted my computer, and my wireless speed increased to just over 19 Mbps. WOW! What a great tool. Problem resolved!
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