Internet speed slows down when running games with DWA-552

I've been seeking how to fix this for years now and I just can't find what's causing this!

I got a decent connexion speed, around ~10ish mb/sec but when I run a game, if it do a speedtest I have ~1 mb/sec.

I'm running Win 7 64.
I got Dir-655 router with the lastest firmware 1.35NA.
DWA-552 network card with lastest drivers (1.7 I think).

EDIT : So, I've tried plugging my computer with a ethernet cable directly into the router and the issue wasn't there so I'm pretty sure it's caused by the DWA-552 network card. Is anyone aware of drivers/settings causing this?

Thanks a lot!
6 answers Last reply
More about internet speed slows running games dwa 552
  1. Dlink routers have a setting (QoS engine) that prioritizes game traffic over network traffic, maybe turning it off will fix your problem.
  2. it's off.
  3. I've tried changing the network card to another PCI slot... now I got 0.07 mb/sec when a game is running in the background. :S
  4. Alright, so I've tried plugging my computer with an ethernet cable and it works fine so I'm sure it's the network card.
    Is anyone aware of driver or settings that are causing this?
  5. Ok now I'm clueless. I've bought a D-Link DWA-160 N600 network card and I have the same problem. Average of 10 mb/sec and when I launch games, I drop to 1 mb/sec.

    Could it be my video card that's making interferences with the wi-fi?
  6. Addramyr Palinor said:
    Ok now I'm clueless. I've bought a D-Link DWA-160 N600 network card and I have the same problem. Average of 10 mb/sec and when I launch games, I drop to 1 mb/sec.

    Could it be my video card that's making interferences with the wi-fi?

    Anything is possible, my video card interferes with my sound card so I don't see why it couldn't mess with your wifi. Did you try reinstalling windows?
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