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Transfer speed dropping dramatically


Gamerman100

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So I've used uTorrent for years without issue. Earlier this past week however I've started having a problem wherein the torrents will download and upload fine for five to ten minutes, and then the upload and download speed decreases down to 1-5kb/s. Generally my download speed is approximately 250kb/s with an upload of 50kb/s. The strange thing is that restarting the client restores the speed, but only for another five or ten minutes until the problem repeats itself again.

The problem initially started when I had bypassed the router and plug the cable into the computer directly from the antenna as a result of the router dying. But I've since replaced the router and the problem persists. I have followed the setup guide, restarted uTorrent, my computer and router after all the various fixes. The OpenOffice.org torrent experiences the same difficulties. Protocol Encryption is enabled, bt.tcp_rate_control is disabled and peer.lazy_bitfield is enabled. Net.max_halfopen is set to 100 and I've never modified the TCPIP.sys

The network status light is green and the port checker in the speed guide says the port is open. The Results of the Speed Guide is 838.9kib/s (102.3KB/s) Upload and 1.4Mbit/s (166.4KB/s) Download. I'm running Windows Vista 64bit, using a Linksys WRT54GL Router and Avast Antivirus. Technically McAffee is installed as well, but its been disabled entirely to my knowledge. The internet is Wireless High Speed Broadband from a local ISP (Neighbourhood Wireless).

The following are the results of Glasnost Test:

Is your upload traffic rate limited?

There is no indication that your ISP rate limits your uploads.

Is your download traffic rate limited?

There is no indication that your ISP rate limits your downloads.

However, some of the measurements were affected by noise, which limits Glasnost ability to detect rate limiting.

Details:

There is no indication that your ISP rate limits your BitTorrent downloads. In our tests, downloads using control flows achieved up to 1836 Kbps while downloads using BitTorrent achieved up to 1638 Kbps.

There is no indication that your ISP rate limits downloads on port 6881 or 40187. In our tests, downloads on port 6881 achieved up to 1836 Kbps while downloads on port 40187 achieved up to 2052 Kbps.

All BitTorrent and control flow transfers using port 6881

Transfer Direction Bandwidth BitTorrent flow Bandwidth control flow

Download #1 2140 Kbps 2052 Kbps

Download #2 1443 Kbps 1744 Kbps

Download #3 1603 Kbps 1703 Kbps

Upload #1 838 Kbps 711 Kbps

Upload #2 721 Kbps 716 Kbps

Upload #3 733 Kbps 704 Kbps

All BitTorrent and control flow transfers using port 40187

Transfer Direction Bandwidth BitTorrent flow Bandwidth control flow

Download #1 1602 Kbps 1698 Kbps

Download #2 1638 Kbps 1836 Kbps

Download #3 1613 Kbps 1767 Kbps

Upload #1 728 Kbps 714 Kbps

Upload #2 714 Kbps 753 Kbps

Upload #3 763 Kbps 767 Kbps

BitTorrent transfers using port 6881 and port 40187

Transfer Direction Bandwidth Port 6881 Bandwidth Port 40187

Download #1 2140 Kbps 1602 Kbps

Download #2 1443 Kbps 1638 Kbps

Download #3 1603 Kbps 1613 Kbps

Upload #1 838 Kbps 728 Kbps

Upload #2 721 Kbps 714 Kbps

Upload #3 733 Kbps 763 Kbps

Control flow transfers using port 6881 and port 40187

Transfer Direction Bandwidth Port 6881 Bandwidth Port 40187

Download #1 2052 Kbps 1698 Kbps

Download #2 1744 Kbps 1836 Kbps

Download #3 1703 Kbps 1767 Kbps

Upload #1 711 Kbps 714 Kbps

Upload #2 716 Kbps 753 Kbps

Upload #3 704 Kbps 767 Kbps

I think that's everything I was supposed to provide. I really hope you can help me resolve this issue!

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