Windows 10: Hyper slow download speed problem

Heya Community!


I recently bought a 150Mb network from my local ISP and for some reason, internet download speed barely goes higher than 0.6Mb but upload speed stays completely normal...


Strangely enough, streaming services like youtube seem to work fine


I even tested on a live Ubuntu USB and internet speed is perfectly fine. On wifi android devices the speed is also fine.

On the other hand, ANY windows machine connected has this problem.

I even tried reinstalling Windows, and even tried all of the things they say about speeding up internet speed like change Auto Tuning level configuration and stuff, and even this doesn't work


I need help

:)

 

Slow download speed after creating Hyper-V External Virtual Switch


Hello.
After buying a new PC (its specs are on my profile), enabling Hyper-V and creating a new External Virtual Switch, I notice that the download speed drops dramatically. My internet conneciton is 1Gbps down and 200Mbps up.

Without External Virtual Switch:

• Speedtest (I get 944 Mbps download, and 214 Mbps upload) --> Speedtest.net by Ookla - My Results
• CPU usage while on Speedtest (no core is maxed out):

• Iperf with a host on the same LAN (upload 911Mbps, download 777Mbps):

• Lan Speed test (746 Mbps upload and 716 Mbps download):

With External Virtual Switch:

• Speedtest result (I get 378 Mbps download and 212 Mbps upload) --> Speedtest.net by Ookla - My Results

• CPU usage while on Speedtest (notice the first core is fully maxed out):

• Lan Speed Test (742 Mbps upload and 596Mbps download):

• Iperf with a host on the same LAN (upload 861 Mbps, download 583 Mbps):

• CPU usage while on Iperf (download) - Notice, once again, Core 1 fully maxed out​:

Conclusion

When the External Virtual Switch is enabled, I assume the download speed is lower due to the fact one CPU core is being maxed out, my question is why? Why isn't the load spread throughout the cores?
Is anyone experiencing a similar issue?

Regards.

 

Slow downloading speed

Hi Manthan,

Regarding your download speed issue, we found a suggestion given by Eeshwar Kumar on our Community page. You can check this link on the suggestion he provided:

Why is Windows Store's download speed so slow?

Let us know if you need further assistance.

 

Slow download speed after creating Hyper-V External Virtual Switch

Have you set the number of cores to 8 in hyer-v settings (virtual processor). No idea otherwise.