Hello, I had been experiencing stuttering audio issue since I had upgrade my internet connection to a 100 Mbps Fiber Connection a few weeks ago. I was using a wireless 4G Mobile Network through a 4G router before which only had a download and upload speed of 23+ Mbps.
I found out that it was Kaspersky Internet Security causing the stuttering issue when there is a high internet usage after searching a lot on google. At first I thought it was the Ethernet LAN driver so I had tried upgrading and downgrading the driver version but none of them helped.
I did not experience this problem with my old connection because it only had a download and upload speed of 23+ Mbps which was slow but with the new 100Mbps connection when I do a speed test or watch a YouTube video the audio and my mouse cursor would freeze for a second several times if the video is still downloading, it affects the PC audio as a whole. It doesn’t matter if I play a music or video on YouTube, Windows Media Player, VLC, or Browsers (Chrome and Firefox) whenever there is a high internet usage but when the downloading is done and there is no internet usage the problem is gone.
It doesn’t seem to effect me while gaming or while streaming a video on facebook because it only uses a few Mbps around 20, it only happens when the download and upload speed gets above 50+ Mbps.
Turning off Kaspersky Internet Security completely fixes the issue but when I turn the Anti virus back on the pc would start freezing again when there is a high internet usage. Using the internet through Wifi doesn’t seem to be effected with the stuttering problem.