I recently bought a Razer Blade 14" qhd touch laptop with the Killer Wireless wifi adapter. I began experiencing slow internet access and disconnects which happened intermittently. These symptoms worsened when I upgraded from Win10 1517 to 1809.



I found a simple solution, turn off the Bluetooth function. My router uses the 2.4GHz band and so does Bluetooth. Evidently there is some kind of signal interference between the Killer wifi and the Bluetooth card. I also downloaded the newest Killer Wireless drivers which seem to reduce the frequency of the disconnects a bit but the total solution was to just turn off Bluetooth. Alternately u can reprogram ur router to use a band other than 2.4GHz but if ur on the road that may not be possible.



Hope this is of help.



Best Regards,

George