when the driver is unreadable, what did you do to get it work again? how do you access the driver? can you show us some screenshot?

Mia123 wrote Model : Hardware Version : Firmware Version : ISP : I recently installed two TP-Link HS100(EU) Smart Plugs at home. For the first few days everything was working fine, Alexa turned the...

Is the speed on your old computer 4Mb/s or 4MB/s? 1B=8b, so 500KB/s=4Mb/s.

hemgutie wrote I followed the steps to install the drivers manually and I still have the same problem. I also shut down off the antivirus and the firewall but it does not work either. In the device...

You may check this: http://www.tp-link.com/us/faq-1076.html

It's better to contact TP-Link support at support@tp-link.com