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

have opened the link, https://www.drwindows.de/windows-10-desktop/134905-bluescreen-zwei-benutzer-gleichzeitig-angemeldet.html but cannot understand German :confused: Do you mean when the win 10...

For German/Austrian Users Only Tel:+49 1805 875465 (German Service) / +49 1805 TPLINKE-mail:support.de@tp-link.com Fee:.14 EUR/minute from German landlines, up to .42 EUR/minute from German mobile...

have no ideal why this model not working, send some info such as log and status to the tp-link support, they may help you further analyze it

I see Tp-link has put a notice here: http://forum.tp-link.com/showthread.php?101094-Security-Flaws-Severe-flaws-called-quot-KRACK-quot-are-discovered-in-the-WPA2-protocol

What's the firmware and hardware on your modem router ? is there any error message when you watch BT spot. It is suggested to update to the latest firmware first.