Hi Luowilliam, There is no way to downgrade the firmware once it has updated to the US version, for the wifi unstable issue , have you tried to change channel and channel width? How about the wired...

Seems like only US has the cable modem now and I learned from tp-link, there is no plan in EU at the moment

Refer to this link: http://forum.tp-link.com/showthread.php?101094-Security-Flaws-Severe-flaws-called-quot-KRACK-quot-are-discovered-in-the-WPA2-protocol

Does the driver recognized by the PC? Can you see it in the device manage? If PC can see the adapter, install the driver in safe mode It is also suggested to test this adapter on another computer to...

Share this port to you : http://forum.tp-link.com/showthread.php?101094-Security-Flaws-Severe-flaws-called-quot-KRACK-quot-are-discovered-in-the-WPA2-protocol

Hi Guys, have you see this post : http://forum.tp-link.com/showthread.php?101094-Security-Flaws-Severe-flaws-called-quot-KRACK-quot-are-discovered-in-the-WPA2-protocol