I don't know what is causing the problem but I found a solution to it:
Problem was caused since there was no limit in utorrent to D/L bandwidth. Since I have a very poor Bandwidth it was very often clogged by utorrent. This caused connection loss for good, or until reboot was done (bug ?).
Now connection is running perfectly for 2 days.
I'm afraid the problem is back.
Here is a netstat when problem appears:
crosoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\dpascal>netstat -an
Active Connections
Proto Local Address Foreign Address State
TCP 0.0.0.0:135 0.0.0.0:0 LISTENING
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
TCP 0.0.0.0:554 0.0.0.0:0 LISTENING
TCP 0.0.0.0:2869 0.0.0.0:0 LISTENING
TCP 0.0.0.0:5357 0.0.0.0:0 LISTENING
TCP 0.0.0.0:10243 0.0.0.0:0 LISTENING
TCP 0.0.0.0:17864 0.0.0.0:0 LISTENING
TCP 0.0.0.0:49152 0.0.0.0:0 LISTENING
TCP 0.0.0.0:49153 0.0.0.0:0 LISTENING
TCP 0.0.0.0:49154 0.0.0.0:0 LISTENING
TCP 0.0.0.0:49155 0.0.0.0:0 LISTENING
TCP 0.0.0.0:49156 0.0.0.0:0 LISTENING
TCP 0.0.0.0:49157 0.0.0.0:0 LISTENING
TCP 10.0.0.2:139 0.0.0.0:0 LISTENING
TCP 79.180.24.151:60782 123.2.160.74:60002 SYN_SENT
TCP 79.180.24.151:60783 24.132.95.44:57322 SYN_SENT
TCP 79.180.24.151:60784 174.140.115.49:39568 SYN_SENT
TCP 79.180.24.151:60785 58.239.190.80:39876 SYN_SENT
TCP 79.180.24.151:60786 99.96.14.177:49620 SYN_SENT
TCP 79.180.24.151:60787 89.100.35.36:59723 SYN_SENT
TCP 79.180.24.151:60788 69.91.1.24:40053 SYN_SENT
TCP 79.180.24.151:60789 93.42.17.9:14243 SYN_SENT
TCP 79.180.24.151:60790 37.104.110.90:60998 SYN_SENT
TCP 79.180.24.151:60791 79.176.198.58:16545 SYN_SENT
TCP 79.180.24.151:60792 84.227.17.129:38537 SYN_SENT
TCP 79.180.24.151:60793 85.17.74.153:54721 SYN_SENT
TCP 79.180.24.151:60794 85.17.74.155:54721 SYN_SENT
TCP 79.180.24.151:60795 2.88.89.34:26191 SYN_SENT
TCP 79.180.24.151:60796 159.205.174.226:51413 SYN_SENT
TCP 79.180.24.151:60797 173.34.197.77:13285 SYN_SENT
TCP 79.180.24.151:60798 96.46.207.29:19312 SYN_SENT
TCP 79.180.24.151:60799 108.26.93.150:14251 SYN_SENT
TCP 79.180.24.151:60800 41.134.159.25:14121 SYN_SENT
TCP 79.180.24.151:60802 122.161.57.115:57175 SYN_SENT
TCP 79.180.24.151:60803 123.237.67.122:26089 SYN_SENT
TCP 79.180.24.151:60804 177.97.208.218:57644 SYN_SENT
TCP 79.180.24.151:60805 178.37.216.218:14851 SYN_SENT
TCP 79.180.24.151:60806 178.48.236.134:46931 SYN_SENT
TCP 79.180.24.151:60807 93.50.80.179:27570 SYN_SENT
TCP 79.180.24.151:60808 87.88.16.235:42791 SYN_SENT
TCP 79.180.24.151:60809 89.132.218.158:47876 SYN_SENT
TCP 79.180.24.151:60810 68.147.60.197:64930 SYN_SENT
TCP 79.180.24.151:60812 118.129.195.21:11555 SYN_SENT
TCP 79.180.24.151:60813 98.124.41.248:22249 SYN_SENT
TCP 79.180.24.151:60814 108.162.163.133:16818 SYN_SENT
TCP 79.180.24.151:60815 124.120.128.40:14621 SYN_SENT
TCP 79.180.24.151:60816 178.73.206.184:65269 SYN_SENT
TCP 79.180.24.151:60817 178.248.25.228:50589 SYN_SENT
TCP 79.180.24.151:60818 180.177.81.54:19334 SYN_SENT
TCP 79.180.24.151:60819 85.72.85.44:18772 SYN_SENT
TCP 79.180.24.151:60820 85.131.129.173:54721 SYN_SENT
TCP 79.180.24.151:60821 85.131.129.178:54721 SYN_SENT
TCP 79.180.24.151:60822 85.245.91.81:54578 SYN_SENT
TCP 79.180.24.151:60823 113.165.132.252:44474 SYN_SENT
TCP 79.180.24.151:60824 115.187.34.142:58156 SYN_SENT
TCP 79.180.24.151:60825 174.3.15.213:12445 SYN_SENT
TCP 79.180.24.151:60826 174.140.115.49:39568 SYN_SENT
TCP 79.180.24.151:60828 143.176.113.98:19130 SYN_SENT
TCP 79.180.24.151:60830 92.45.243.187:51413 SYN_SENT
TCP 79.180.24.151:60831 94.128.208.151:53477 SYN_SENT
TCP 79.180.24.151:60832 99.253.1.38:56803 SYN_SENT
TCP 79.180.24.151:60833 92.45.215.9:51413 SYN_SENT
TCP 79.180.24.151:60834 124.149.35.192:28873 SYN_SENT
TCP 79.180.24.151:60835 186.19.151.151:62348 SYN_SENT
TCP 79.180.24.151:60836 186.23.230.173:62570 SYN_SENT
TCP 79.180.24.151:60837 186.136.64.172:46643 SYN_SENT
TCP 79.180.24.151:60838 41.238.117.201:51413 SYN_SENT
TCP 79.180.24.151:60839 177.9.248.96:56033 SYN_SENT
TCP 79.180.24.151:60840 177.43.144.232:20566 SYN_SENT
TCP 79.180.24.151:60841 178.48.236.134:46931 SYN_SENT
TCP 79.180.24.151:60842 145.116.27.30:35552 SYN_SENT
TCP 79.180.24.151:60843 87.69.14.11:51413 SYN_SENT
TCP 79.180.24.151:60844 88.186.192.7:34567 SYN_SENT
TCP 79.180.24.151:60845 88.212.41.134:13410 SYN_SENT
TCP 79.180.24.151:60846 190.98.101.162:50081 SYN_SENT
TCP 79.180.24.151:60850 66.108.247.122:60226 SYN_SENT
TCP 79.180.24.151:60851 98.198.9.207:15548 SYN_SENT
TCP 79.180.24.151:60852 98.224.79.96:57718 SYN_SENT
TCP 79.180.24.151:60853 93.102.213.251:62035 SYN_SENT
TCP 79.180.24.151:60854 88.233.106.27:19161 SYN_SENT
TCP 79.180.24.151:60855 89.98.218.237:45555 SYN_SENT
TCP 79.180.24.151:60856 89.139.57.80:52295 SYN_SENT
TCP 79.180.24.151:60857 90.181.36.225:19662 SYN_SENT
TCP 79.180.24.151:60858 205.200.149.224:49464 SYN_SENT
TCP 79.180.24.151:60859 37.14.175.189:63753 SYN_SENT
TCP 79.180.24.151:60862 188.6.215.173:9616 SYN_SENT
TCP 79.180.24.151:60863 186.223.199.203:1720 SYN_SENT
TCP 79.180.24.151:60864 187.58.106.20:10881 SYN_SENT
TCP 127.0.0.1:10000 0.0.0.0:0 LISTENING
TCP [::]:135 [::]:0 LISTENING
TCP [::]:445 [::]:0 LISTENING
TCP [::]:554 [::]:0 LISTENING
TCP [::]:2869 [::]:0 LISTENING
TCP [::]:5357 [::]:0 LISTENING
TCP [::]:10243 [::]:0 LISTENING
TCP [::]:17864 [::]:0 LISTENING
TCP [::]:49152 [::]:0 LISTENING
TCP [::]:49153 [::]:0 LISTENING
TCP [::]:49154 [::]:0 LISTENING
TCP [::]:49155 [::]:0 LISTENING
TCP [::]:49156 [::]:0 LISTENING
TCP [::]:49157 [::]:0 LISTENING
TCP [2002:4fb4:1897::4fb4:1897]:17864 [2002:4fb4:1897::4fb4:1897]:60827 T
IME_WAIT
TCP [2002:4fb4:1897::4fb4:1897]:60829 [2002:1843:c2e6::1843:c2e6]:62926 S
YN_SENT
TCP [2002:4fb4:1897::4fb4:1897]:60849 [2002:ae23:fd42::ae23:fd42]:10526 S
YN_SENT
UDP 0.0.0.0:123 *:*
UDP 0.0.0.0:1900 *:*
UDP 0.0.0.0:3702 *:*
UDP 0.0.0.0:3702 *:*
UDP 0.0.0.0:5004 *:*
UDP 0.0.0.0:5005 *:*
UDP 0.0.0.0:5355 *:*
UDP 0.0.0.0:6771 *:*
UDP 0.0.0.0:17864 *:*
UDP 0.0.0.0:55159 *:*
UDP 10.0.0.2:137 *:*
UDP 10.0.0.2:138 *:*
UDP 10.0.0.2:1900 *:*
UDP 10.0.0.2:62031 *:*
UDP 79.180.24.151:1900 *:*
UDP 127.0.0.1:1900 *:*
UDP 127.0.0.1:55365 *:*
UDP 127.0.0.1:57481 *:*
UDP 127.0.0.1:62032 *:*
UDP [::]:123 *:*
UDP [::]:3702 *:*
UDP [::]:3702 *:*
UDP [::]:5004 *:*
UDP [::]:5005 *:*
UDP [::]:5355 *:*
UDP [::]:17864 *:*
UDP [::]:55160 *:*
UDP [::1]:1900 *:*
UDP [::1]:57480 *:*
UDP [fe80::785c:bfd8:cdef:538b%10]:1900 *:*
C:\Users\dpascal>ipconfig
Windows IP Configuration
PPP adapter Broadband Connection:
Connection-specific DNS Suffix . :
IPv4 Address. . . . . . . . . . . : 79.180.24.151
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 0.0.0.0
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : domain.name
Link-local IPv6 Address . . . . . : fe80::785c:bfd8:cdef:538b%10
IPv4 Address. . . . . . . . . . . : 10.0.0.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.0.0.138
Tunnel adapter isatap.domain.name:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : domain.name
Tunnel adapter Local Area Connection* 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Tunnel adapter isatap.{1C7A55DE-3D9F-4E7D-A3B4-A5ED9CA7E22D}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Tunnel adapter 6TO4 Adapter:
Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2002:4fb4:1897::4fb4:1897
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
C:\Users\dpascal>