What can cause slow ping?

What can cause slow ping?
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andrew c @ 5th Oct 02:51PM:
What can cause slow ping?

I'm concerned one of my roommates might have a virus or something. I'm getting a ping time of 1030ms when wireless is turned on an 24ms with wireless off. Also, almost all of the upload bandwidth is taken. This makes browsing webpages very slow on my computer with wireless on, and everything normal with wireless off (as my computer is hardwired via ethernet.) I'm going to ask my roommate what's going on, but I'm curious what could be causing this. Maybe they are running torrents or some other P2P junk? Maybe they have a virus? Just wondering what the known causes are, if there are any. Thanks.
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dbmvTechs @ 5th Oct 08:05PM:
Re: What can cause slow ping?

Sounds like you may have something else transmitting near or on the same frequency as your wireless card. Or your wireless card is going bad on you. Look for wireless mouse or a wireless video game like play station or something. Maybe a cordless phone.
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dbmvTechs CATV Forums
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andrew c @ 8th Oct 12:32PM:
Re: What can cause slow ping?

It only happened that one day. Never figured it out. We don't have any wireless devices like that, and it seems like if that were the case, we'd be experiencing it more. I don't think it is a virus anymore, or else it would also still be occurring (unless a virus scan cleaned it up). Could just be a weird anomaly. Or perhaps it was some weird p2p/torrents junk. If it happens again, I'll post again with more info if there is any. Thanks anyway!
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NormanS @ 16th Oct 03:10AM:
Re: What can cause slow ping?

Any Internet activity which saturates your upload bandwidth can cause the symptoms you reported. Whether it is a virus, or a P2P download, the effect is the same. It is often useful to throttle back upload bandwidth on P2P applications. I only let uTorrent run at ~80% of my upload capacity; but I have some hardware with QoS. Sometimes, on cable, you need to throttle back to 70%, or even 60% of maximum bandwidth for your speed tier.
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Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum
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