ultimate guide to utorrent

these istructions saved my life🙂

check it out: http://forum.utorrent.com/viewtopic.php?id=74820

Have you upgraded lately from a uTorrent older – 2.0/1.8x – release to the new v 2.X (2.0.4/2.2) ?
A new install of uTorrent ?
Having some  memory issues ? CPU load increase ?
Router/Internet are overloaded ?
Cannot reach the speed you used to have, or having a fluctuating/crappy speed ?

You might not need that  –                                           wink

Go on, try and read this, it might help!
[size=1.3]Oh… and if it did help you, please post below – what and how. Thanks smile[/size]

If you have a pre-2.01 release installed (1.8.5+), you should be aware that the main things that have changes and might effect you are:

1) Your traffic overhead (being the ack packets in the reverse direction to the actual traffic, or the headers inside them) is now being clearly viewable:
You can see it on the dotted speed-graph lines + the “O:” on the bottom status bar
If your “Bandwidth->Apply rate limit to transport overhead” is enabled ( advanced->net.calc_overheadtrue in pre-2.03 releases), overhead will also be counted toward your speed limit (added to your payload-data speed).
2) Support for the uTP (UDP based) protocol was added (in V2.0 and up – added out-going connections’  support)
Also, you can not choose NOT to limit only the uTP payload speed in the Bandwidth pref. dialog.
This latest release has also a bit larger amount of connection per second rate than before.
On post XP systems – the bt.max_halfopen (concurrent connection attempts) default value
was increased from 8 to 25, and both TCP AND uTP connections are being tried for every peer.
3) Files read/writes is differently handled, and your Windows disk cache might be causing some issues (crashes/hangups/slowdown).
4) Several other default settings’ values were modified/added

[size=2]My mini-guide/suggestions for a 2.0x user:[/size]

0. If nothing works for you… :
No downloads, no seeding , active torrents are in red, no green net-status, in trackers’ tab – none are connecting… check this:
[1] If you have a router –  check that your port is still being forwarded and is opened [Control-G->setup guide] and for both TCP + UDP
[2] Check that you have enabled/excluded the new release in your Windows firewall/3rd party firewall (replacing the old rules)
40266243.th.png 36637356.th.png

A. For fixing CPU-load/memory-issues/stability:
[1] In pref.->advanced->Disk Cache  Make sure :
1a. ->Disable Windows caching of disk writes/reads – are both checked
1b. ->reduce memory usage when the cache is not needed – is unchecked
[2] Make sure pref.->advanced->gui.transparent_graph_legend is false
[3] Win7 users might experience uTorrent process not closing properly.
It is suspected to be caused by a Microsoft IPV6 issue. Those command lines can assist by disabling IPV6 in your system:
netsh int 6to4 set state disabled
netsh int teredo set state disabled

[4] On Win7 – you can also set the new advanced setting: net.disable_ipv6  = true that supposes to prevent it.
1a1z.th.png 1a2.th.png


B. For improving low speed issues:
[1] Make sure your upload speed limit is correctly set as follows:
1a. If you have “Banwidth->Apply rate limit to transport overhead”  enabled (recommended) –
set the upload limit to about 80-95% of your connection’s maximum upload-speed/cap.
This is required so to accommodate for 1) + 2) above, limiting the total of
upload-payload + download-acks-overhead
You can test your connection speed @ http://speedtest.net or use  the options->setup-guide (control-G)
1b. If you have “Bandwidth->Apply rate limit to transport overhead” – disabled
set the upload limit to 70-80% of your connection’s maximum upload-speed/cap.
This is recommended in this case, but not required, though.
You can set it to as low as the actual seeding-payload speed you like to have.
In both cases you can use a different upload speed limit setting at  pref->bandwidth->”Alternate upload rate when not downloading
Test your download speed again now with this (test torrent…)  This step should be enough for most users that upgrade!

[2] Settings that might improve (reduce) your overhead:
2a. Set pref->advanced->net.uTP_dynamic_packet_size =false
2b. Set pref->advanced->net.utp_initial_packet_size8 (use MTU size)
[3] Set pref.->advanced->bt.tcp_rate_controlfalse
[4] If you want to try and reduce your ISP’s throttling:
Some ISPs are more “sensitive” to UPD (uTP) traffic. You can reduce the use of uTP by –
4a. Support only uTP incoming connections by setting pref->advanced->bt.transp_disposition29
4b. Alternatively – disable the use of uTP by pref->BitTorrent->Enable Bandwidth Managementunchecked
95941482.th.png 55786286.th.png1b2.th.png 1b2b.th.png

Finally,  For users who like to experiment with uTP – try to reset it to UNLIMITED speed disabling the new: Bandwidth->Apply rate limit to uTP connections .
The theory is that this will give you high speeds, w/o effecting other Internet traffic.

Good luck with it ! and report back here … wink


C. For improving Internet choking / router issues:
[1] First, make sure you have set a proper upload speed limit  (B.1 above) and that your max # of connections/slots are per the setup-guide
[2] Change setting per B.2a&b above
[3] Set your pref->advanced->bt.connect_speed5
[4] Set your pref->advanced->net.max_halfopen8
[5] Disable the DHT network
[6] In pref->connection – Disable NAT-PMP port mapping.
Make sure ‘uPnP port mapping’ is unchecked if you’ve manually forwarded you port in the router.

D. If you feel your multimedia player throttles your speed (Win7/Vista):
If you’ve noticed this strange behaviour (mostly with high speed connections) when running a player/recorder/streamer app –blame Microsoft… and modify/create  this registry key:

Name : NetworkThrottlingIndex

Setting to  – FFFFFFFF will make it not throttle .
Other values may adjust the amount per the above article.

E. For  minimizing possible “privacy invasion”:
Pref->general->send details when checking for updates –  unchecked
Pref->advanced->gui.report_problems – false (do not send crash reports)
Pref->advanced->gui.bypass_search_redirect – false (bypass BT inc search server when searching)
You may also look here for some more advanced methods

F. Bypassing known bugs:
1. Bug: After running for 22 days – uTorrent will not handle properly uTP connections (bad timer issue, relevant only for builds 21586 and below)
Bypass: Upgrade to the latest build, or close & open uTorrent at least once every 22 days … tongue
2. For Win 7/x64 users –  not being able to kiil uT process – see A[3-4] above …
3. Resetting Transfer Cap history – will not quit the “stopped” state , caused by the cap limitter. A bypass solution is here.
4. TBD …

G. When the speed is going over your set limits:
See that your Perf.->bandwidth->Apply rate limit to uTP connections is checked…

H. For  problems downloading the “help file” :
– Get the latest copy from here
– Extract to your settings *.dat files location
– Rename to utorrent-<version-#>-<build-#>.chm
For example – for release 2.0.1 build 19248 – utorrent-201-19248.chm
for release 2.0.2 build 19648 – utorrent-202-19648.chm


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