I have this problem on my windows 10 professional computer from PCSpecialist Octane 3. I did 3 clean installs and sfc/scannow now with nothing wrong as a result 7 times, dism and chkdsk /f/r 7 times wsreset.exe 6 times and turned off my firewall 3 times. I use mobile internet that peaks at 4-5MB per second that unlimited and i get this problem. i had a chat with a guy called lyandon from microsoft tech support and a women with an unusually foreign name from microsoft tech support and they said use a different internet. i use a different internet then it works but why my internet is the same speed as my mates and ones a uni that connected to a network that slows the connection down any help?