Awful download speeds after upgrade to OS X Lion

Good evening all Mac-users!
I have searched the forum for an answer but as far as I can see the only problem that's in common with mine occurs on iPad's. However, I have a MacBook that I recently upgraded to Mac OS X Lion, everything works fine except one thing, the download speeds.
After the installation of Lion my download speeds (from everything, torrents, ipsw's, music etc) is around 1/50 of it's original speed. It's not the network cause other computers that's connected to the same network works without problem.
What could it be? Does Lion have a firewall or something that block the downloads?
Thank you in advance everyone!

Sorry about that. I misunderstood the notation "~/Library" to mean the Library at the root of the hard drive. There is indeed an iWeb Domain in "Users/Trixi/Library/Application Support/iWeb". The iWeb Domain appears to be intact being 175MB. It shows a status of Last Opened/Modified: Today @ 10:47 which is when all this started.
However, nothing else had changed from my original post - iWeb did not function. All its menu choices were greyed out. When I selected "Hide Others" all open windows disappeared and iWeb was active but with no window at all.
As you pointed out, I was misreading folder locations. So, while writing this reply, I thought I'd double check another action I'd tried. It was posted by kt4ever under "iWeb and Lion problems" here:
https://discussions.apple.com/thread/3233238
and - it worked! My Domain is back, just as I'd left it. I only performed the following subset though:
Go to Users/home/Library/Preferences/com.apple.iWeb.plist and drag file to trash.
Also delete com.apple.iWeb.plist.lockfile.
Empty trash.
Open iweb.

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System Up Time25:15:30
Port
Status
TxPkts
RxPkts
Collisions
Tx B/s
Rx B/s
Up Time
WAN
PPPoE
1995701
4433099
0
2617
31588
15:58:31
LAN
10M/100M
1657313
426763
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5400
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25:15:26
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0
0
0
0
25:14:55
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Downstream
Upstream
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4704 kbps
448 kbps
Line Attenuation
42.0 db
24.5 db
Noise Margin
7.9 db
23.0 db
BT Speed Test at 09:52
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For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :4704 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 3500 Kbps
BT Speedtest at 11:45
Download speedachieved during the test was - 2714 Kbps
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Additional Information:
Your DSL Connection Rate :4704 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
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Additional Information:
Your DSL Connection Rate :4704 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
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TEST_DATE
TIME_ZONE
DOWNLOAD_MEGABITS
UPLOAD_MEGABITS
LATENCY_MS
SERVER_NAME
01/03/2012 13:40
GMT
0.8
0.08
73
Liverpool
01/03/2012 14:09
GMT
2.1
0.17
90
Manchester
01/03/2012 14:14
GMT
1.8
0.18
65
Birmingham
01/03/2012 14:15
GMT
1.46
0.17
104
Milton Keynes
01/03/2012 14:46
GMT
0.85
0.2
115
Milton Keynes
01/09/2012 16:56
GMT
0.28
0.09
1073
Milton Keynes
01/09/2012 17:23
GMT
0.32
0.2
71
Milton Keynes
01/09/2012 17:43
GMT
0.88
0.37
140
Milton Keynes
01/09/2012 17:50
GMT
0.51
0.37
134
Milton Keynes
01/09/2012 20:46
GMT
0.53
0.24
182
Milton Keynes
01/09/2012 20:48
GMT
0.78
0.3
134
Milton Keynes
01/10/2012 15:18
GMT
3.61
0.24
202
Gloucester
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GMT
3.8
0.29
212
Gloucester
01/10/2012 16:32
GMT
1.94
0.24
58
Birmingham
01/10/2012 16:38
GMT
2.33
0.16
59
Birmingham
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GMT
0.34
0.21
264
Birmingham
01/10/2012 16:54
GMT
0.81
0.26
506
Birmingham
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GMT
1.17
0.24
52
Manchester
01/10/2012 17:24
GMT
0.15
0.14
575
Manchester
01/10/2012 17:26
GMT
0.63
0.19
78
Birmingham
01/10/2012 17:30
GMT
0.63
0.21
144
Birmingham
01/10/2012 17:37
GMT
0.26
0.03
394
Birmingham
01/10/2012 17:51
GMT
0.51
0.17
259
Birmingham
01/10/2012 19:09
GMT
0.28
0.13
603
Birmingham
01/10/2012 19:10
GMT
0.5
0.22
67
Birmingham

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2.031 Mbps
Upstream:
448 Kbps
ADSL Settings
VPI/VCI:
0/38
Type:
PPPoA
Modulation:
G.992.1 Annex A
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0 / 0
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0 / 0
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0 / 0
HEC Events (Down/Up):
0 / 0
Error Seconds (Local/Remote):
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804 Kbps
0 Kbps
1000 Kbps
Max Achievable Speed
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Results of router info:
ADSL Line Status
Connection Information
Line state:
Connected
Connection time:
0 days, 22:35:10
Downstream:
4.094 Mbps
Upstream:
448 Kbps
ADSL Settings
VPI/VCI:
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G.992.1 Annex A
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14.7 dB / 9.0 dB
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19.9 dBm / 12.4 dBm
FEC Events (Down/Up):
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CRC Events (Down/Up):
24 / 2
Loss of Framing (Local/Remote):
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Loss of Signal (Local/Remote):
0 / 0
Loss of Power (Local/Remote):
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HEC Events (Down/Up):
261 / 0
Error Seconds (Local/Remote):
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FAQ
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773 Kbps
0 Kbps
1000 Kbps
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IP Profile for your line is - 1000 Kbps

Awful download speeds after upgrade to OS X Lion

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