I have searched for help on this site and found a possible problem because of my Motorola Surfboard modem, but checked as the faq instructed, and saw no indication of a problem. I have applied and checked the tcpip.sys patch. Utorrent is set to an exception in Windows Firewall. I should point out that I have tried disabling UPnP port mapping, as I understand my cable modem doesn't seem to support it. Why is the missing 20 kB/sec not being used for uploading, and why are downloads consistently slow. I am even uploading a 700 MB torrent to around 50-100 peers and still usually end up with my upload speed around 20-25 kB instead of the full 45 kB I have allocated. Now I get download speeds of around 75 kB/sec and the upload speed stays around 20 kB. I can understand that the download speed is torrent dependent, but I have always maxed out the bandwidth I have allocated for uploading (i.e. Then both my download and upload speeds dropped. Everthing worked great until about a month ago. My utorrent settings are unlimited download speed and 45 kB upload. I have been using utorrent for quite some time, and upgraded to version 1.6.1 as soon as it was released. I am using Windows Firewall and AVG free edition anti-virus as well as Windows Defender for spyware protection. It shows 9581 kbits/sec download and 975 kbits upload speed.

My speedtest through shows a download/upload speed consistent with the 10 Mbit/1 Mbit advertised by Eastlink 10 service.

I have only the single computer, no router, and a Motorola Surfboard SB5101 cable modem.

My internet provider is Eastlink and is rated at 10 Mbits/sec. I have an Intel Core 2 Duo E6300 (1.86 GHz) with 1 GB Ram running Windows XP/SP2.

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