I found the issue. My TP-Link driver was overwritten by Microsoft’s USB Wireless Adaptor driver which last update was in 2009.
I simple uninstalled it and reinstall with TP-Link’s driver all over again. now transfer rate is back healthy level!
I found the issue. My TP-Link driver was overwritten by Microsoft’s USB Wireless Adaptor driver which last update was in 2009.
I simple uninstalled it and reinstall with TP-Link’s driver all over again. now transfer rate is back healthy level!