Share the bate firmware with you : http://support.tp-link.com/f/a596579351/?dl=1

Hard to say whether it is Microsoft issue or the driver, I learned that some people solved by change PCI or reinstall the driver , some tried the same, method , still not working

sounds odd, some people has solved by change PCI or reinstall the driver, but some still cannot get it work. seems depends on different computer as well, suggest you guys contact tp-link support team...

yes, suggest to set bandwidth control or QOS

The HS100 itself cannot set static IP, need to get IP address directly from the wifi network. Does the Fritzbox 7490 has DHCP function? When you try to turn on the remote control on the kasa app,...

hansremmerswaal wrote As as test, did you changed back to router mode for some time and noticed that the speed was more stable? Your problem could also be related to the following; Every DECO has 2...