In order to improve reception, I went out and purchased a more powerful antenna to supplement the stock one. I work on the third level, however the WiFi router is on the first. When trying to connect to a free, unlimited data plan network, the built-in laptop adapter fell short by a factor of 1. By using the TL-built-in WN722N's antenna, the connection speed increases by a factor of 2-3; when using an external, more powerful antenna, the improvement increases to a factor of 3-4.
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