uTorrent and svchost.exe

[koolyce]

Hi,

I'm using Windows 7 with uTorrent and when I start uTorrent, I have some udp connexion using svchost.exe who start. Because I'm using cFossSpeed for bandwith management, I have some problem.

Why uTorrent using svchost.exe? How can I disabled it?

Thanks

[Switeck]

What makes you think uTorrent is using that connection?

[koolyce]

Hi,

I will read your 4 links. But I'm sure it is uTorrent because the transfer, up and down, can go up over 100Mb for an ip and also, when I pause my torrents, the udp connexion is still there and when I stop all the transfert, it desapear.

[moogly]

The 4 links are his sig.

[koolyce]

Hahahaha true

Anyway...I read it and all have been already done correctly.

Also, I forgot to mention that I use the same settings that has been used on windows XP and the problem wasn't there.

So I'm wondering the compatibility or stuff like that with uTorrent and Windows 7.

[Switeck]

If the UDP stream disappears when you stop all transfers (shutting down uTorrent for instance), that means uTorrent's traffic is being rerouted through a man-in-the-middle style watching software, such as a keylogger or software firewall.

[koolyce]

I have the Windows firewall turn on and when I turn off, no difference.

I did a virus scan, malware scan (spybot and search) and nothing. My windows installation is brand new.

Also, it seems to be only few connexion (1-3).

[Switeck]

Your antivirus program probably includes a "lite" software firewall which is to blame for this.

[koolyce]

I use Avira Personnal and from what I know, no "lite" firewall is integrated.

[Switeck]

Then it may be windows firewall.

Try disabling DHT, LPD, Resolve IPs, UPnP, and NAT-PMP and see if it goes away.

If you're still getting UDP connections/streams...it may be uTP or Teredo/IPv6 connections.

[koolyce]

I disabled windows firewall.

How I disable Resolve IPs? Others are already disabled.

And if it is uTP or Teredo/IPv6 connections, how can I fix this?

Thanks

[Switeck]

Right-click in PEERS window/tab of a torrent to get the menu to disable Resolve IPs.

You can disable Teredo/IPv6 in Windows...check if uTorrent says it's even installed/in use at uTorrent start in its Logger window/tab.

uTP connections can be disabled by changing bt.transp_disposition to 5. (ONLY works in v1.8.3 and later!)

[koolyce]

Thanks. For Teredo/IPv6, uTorrent said it is installed and in use. How can I disabled it?

What is uTP connections?

Thanks

[Switeck]

For Teredo/IPv6:

http://forum.utorrent.com/viewtopic.php?pid=360679#p360679

For uTP, read 1st posts of these threads:

http://forum.utorrent.com/viewtopic.php?id=49813

http://forum.utorrent.com/viewtopic.php?id=60602

[koolyce]

Thanks Switeck.

Since I disabled Teredo/IPv6 and uTP my problem seems to be no more there.

Thanks again. I will keep an update in couple of days to give you the status to be sure it is always like that.

[Switeck]

There was probably nothing wrong with the UDP traffic, only that you were unhappy how it was shown as coming from svchost.exe instead of uTorrent.

[koolyce]

In fact, with cFosSpeed, the traffic shaping was not done correctly with these uTorrent features.

But now, everything is working. So thanks.