请教高人帮忙分析下BT没有速度的原因

Question

我是铁通1M ADSL用户,最初使用的时候BT还不错,白天有50-100K的速度凌晨可以接近200K.可是后来不知道什么原因(重装系统?病毒?windows补丁?......)速度变的很慢,白天上传下载全部是O,晚上也只有20K...这样开机下载完全是浪费电啊,万般无奈求助大家.
我用的BT工具是BC,全局日志如下.请高手分析下,如果是被运营商禁掉了就算了如果不是请问我该做些什么...谢谢了!(本人QQ68514221)
Default tracker optimization rules file loaded.
IP rules file: ipfilter.dat loaded, 0 entries.
Start Listening at TCP Port:16393
Start Listening at UDP Port:16393
BitComet 0.70 is running on:
CPU : AMD Athlon(tm) XP 1700+ 1470 MHz
RAM size : 255.48 MB
OS Version: Microsoft Windows XP Professional Service Pack 2 (Build 2600)

Windows XP WF Status: TCP Port is not opened in Windows Firewall.
Windows XP WF Status: add TCP port in Windows Firewall Succeed.
Windows XP WF Status: UDP Port is not opened in Windows Firewall.
Windows XP WF Status: add UDP port in Windows Firewall Succeed.
Update Local IP: 222.42.131.121
Windows XP ICS Status: cannot find working ICS.
Favourite sites file is updating from http://100.bitcomet.com/bitcomet/v0.62/fav/fav_zh_cn.xml
SearchPage file is updating from http://100.bitcomet.com/bitcomet/v0.59/search/search_zh_cn.mht
IntroducePage file is updating from http://adpage.bitcomet.com/bitcomet/v0.64/fav/introduce_zh_cn.mht
BitCometBar file is updating from http://100.bitcomet.com/bitcomet/v0.64/bitcometbar/bitcometbar.xml
Preview_ad file is updating from http://adpage.bitcomet.com/bitcomet/adpage/preview-zh-cn.xml
BitCometBar file updated to C:\Program Files\BitComet\bitcometbar\bitcometbar.xml
Favourite sites file updated to .C:\Program Files\BitComet\fav\fav_zh_cn.xml
SearchPage file updated to .C:\Program Files\BitComet\fav\search_zh_cn.mht
IntroducePage file updated to .C:\Program Files\BitComet\fav\introduce_zh_cn.mht
Windows XP UPnP Status: device not found!
UDP tracker report: WAN IP = 122.48.0.78
Favourite sites file version checking . . . . up-to-dated now.
SearchPage file version checking . . . . up-to-dated now.
IntroducePage file version checking . . . . up-to-dated now.
BitCometBar file version checking . . . . up-to-dated now.
Preview_ad file version checking . . . . up-to-dated now.
Update Local IP: 222.42.134.27
Windows XP ICS Status: cannot find working ICS.
Windows XP UPnP Status: device not found!
Update Local IP: 222.42.130.152
Windows XP ICS Status: cannot find working ICS.
Windows XP UPnP Status: device not found!
Update Local IP: 222.42.136.147
Windows XP ICS Status: cannot find working ICS.
UDP tracker report: WAN IP = 122.48.0.80
Windows XP UPnP Status: device not found!
Update Local IP: 222.42.137.93
Windows XP ICS Status: cannot find working ICS.
Windows XP UPnP Status: device not found!
Update Local IP: 222.42.132.53
Windows XP ICS Status: cannot find working ICS.
Windows XP UPnP Status: device not found!
UDP tracker report: WAN IP = 122.48.0.84

Answer 1

有四种可能，一种就是你限制了上传速度很小，二种就是下载人少，三种你BT用新版本。四种网速低