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Bizarre sound issue associated with network

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#1 Shiscorn


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Posted 14 January 2017 - 04:18 AM

Hello everyone at Bleepingcomputer. First post, didn't really want to seek out help as I am usually capable of handling most computer problems on my own, but this one just seems bizarre and frankly it's driving me round the bend.


Getting straight to the problem. Out of the blue I noticed while any sound/video is playing, loading or opening any new tabs at all in Firefox would cause a horrible grinding/glitching super stutter (think robots screaming) for 1-2 seconds. I thought that maybe my laptop was just under too heavy of a load at the moment and didn't worry about it, but after restarts it still persisted. What was more weird was while nothing else was open and I was watching video I would randomly get it too, never in the same scenes though (lots of processing on a grainy scene or something that might cause video/sound lag). That's when I noticed killing the internet connection completely cleared it up. I could put the computer under full load and not get the slightest sound skip. I've never encountered something like this. Basically any network traffic causes the CPU activity to spike to 90/100% usage for 1-2 seconds. As I said this is every time I load or open any tab in Firefox, whether its a bare bones text html or a massive image heavy page.


I have never encountered such a bizarre problem before. How is network traffic causing these massive spikes? I have not installed or changed my set up, it just seemed to appear out of nowhere.

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#2 Xoctane


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Posted 14 January 2017 - 08:09 AM

I've had an Intel I219-V network card driver causing huge DPC latency spikes, and that caused audio to glitch. Guess you can use LatencyMon to investigate that. A possible solution is updating to a newer driver version or an older one.

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