My PC suffering from extremely slow/non-existant DL speeds, UP/Ping are fine. Other devices on the network unaffected [Solved]

Darker0001

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Aug 19, 2015
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4,510
Starting yesterday afternoon my PC started seeing an extremely slow internet connection, running multiple speedtests I figured out that the DL speed was abysmal, Ping/UP speeds were normal and unaffected however. Every other device on the network was unaffected however, only my PC was having this issue.

I've reset the modem/router at least 5-6 times, tried a different CAT5 cable, no luck.

So as I usually do with my of my computer problems I went on a google search binge (on my laptop since I could barely open google most of the time on the PC) I found a thread on here that for the most part described the same problem. However most of the people were lucky enough to find out a program named AMD Quick Stream was the cause of their problem I didn't seem to have the same luck as the program doesn't exist on my PC.

I tried a few other suggestions on the post, uninstalling/reinstalling my network adapter, some CMD prompt lines, no luck. Tried uninstalling my GPU temporarily as some people were having that be the case, no luck either. I've also even tried turning off my anti-virus to see if that was throttling it but that wasn't the case either, about the only thing I haven't done was a full virus scan (only reason I haven't is because I've been trying faster solutions first since the scan would take awhile, ya I know probably a dumb idea lol).

Now sometimes randomly my DL speed will come back to regular speeds, but this lasts a minute at most and by the time I run a 2nd speedtest its dropped already. This is what I'm dealing with 90% of the time:

Internet_Speed.jpg


Anyone have any other possible suggestions? Losing my mind here ><
 

mjbn1977

Distinguished
I have exactly the same problem. Couldn't find any solution to the problem yet. Even reset windows 10 and installed everything new. Worked fine and as normal first. But after ten minutes the same problem started to happen again. I also started a forum post about this problem. We should monitor each other post and stay in touch for the case one of us figures out a solution.

By the way....I am also about to loose my mind.

I noticed that it happend first time on monday after my computer automatically installed new windows updates. Then only new thing I added was a new external harddrive von WD.
 

Darker0001

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Aug 19, 2015
2
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4,510
So after I got home from work and had more time to work on it, I decided to grab a NIC off my work truck and throw it in there just to see if it was my onboard LAN by chance, and low and behold we got it. The onboard LAN port was apparently the cause of my issue, after trying two different cards because my company carries some older stuff (wasn't Win7 compatible) the 3rd worked and when I plugged my ethernet into it I connected and I've been running at full speed with no slow down at all. So try a NIC mjbn1977 and see if that does it :p