1. Distance and settings. Since such is not here, we can't discuss that.
2. http://www.tp-link.com/en/article/?faqid=510 is interesting. It appears TP Link is still learning about networking.
I have a desktop connected to a TP Link wireless router - TL-WR940N model.by means of the a TL-WN727N wireless N USB Adapter.. Though the signal indicator showed strong, the Windows connector warned of low connectivity or no connectivity. I have repeatedly installed the software for the Adapter following the big sheet of installation instructions and even disabled the Ethernet card installed.on the desktop computer. What could the problem be in failing to connection by means of the Adapter? How to resolve the problem? .