ndoggac Posted July 3, 2006 Report Share Posted July 3, 2006 Under normal use, my internet is fine, but within minutes of starting utorrent I get kicked off my ISP. Only unplugging the router and modem restores my connection. I've read and tried a lot of things to try and fix this, but nothing works. I ran TCP/IP optimizer for my connection, and patched the tcpip.sys file according to the script in the speed guide (numbers below)Details.Comcast HSI (6M/b down, 384 K/b up)Motorola Surfboard SB4200 ModemLinksys BEFW11S4 Wireless Router/Firewall (With latest firmware, and MTU set to 1500 from TCP/IP Optimizer Value)Latest Intel Motherboard DriversLatest NIC driversTCP/IP Optimizer Program gave me a max MTU of 1500.Utorrent Settings from "Settings Optimizer Script" from forumNetwork Options › Global maximum upload rate: 35Network Options › Alternate upload rate: 42Network Options › Global maximum download rate: 690Torrent Options › Global maximum number of connections: 384Torrent Options › Maximum number of connected peers per torrent: 48Torrent Options › Number of upload slots per torrent: 8Advanced Options › net.max_halfopen: 192The following from the optimizer script confused me.....Note that you must apply LvlLord's TCP/IP patch. This setting should be approx. 50% of your upload speed (in kilobits/s).Does this note apply to the net.max_halfopen value or does this mean I patch tcip.sys file to 192? or 384?I also set "protocol encryption" in utorrent to "forced" and unchecked the legacy box.I tried lowering net.max_halfopen value to default, and turning DHT off. Ports are forwarded properly, as I get a greenlight at the bottom, connect up to over 200 nodes, and download quickly until I'm disconnected...1) Does it appear that I have my settings correct?2) Is my modem or router affected by the new round-robin feature?3) Any other ideas?Thanks in advance. Link to comment Share on other sites More sharing options...
ndoggac Posted July 4, 2006 Author Report Share Posted July 4, 2006 I think I figured this out....been running over 12 hours now with no disconnect. I setup utorrent again as described above, but then in the advanced options I set the following....peer.disconnect_inactive to false (meaning it's activated)then i set peer.disconnect_inactive_interval to 250 (later changed it back to default of 300) with no problems.I think what happens is that too many connections are left stagnant if this option is not activated, and that somehow overloads certain modems/routers/isps.....whatever. I'll post again if I get dropped again using these settings. Hope this helps. Link to comment Share on other sites More sharing options...
ndoggac Posted July 7, 2006 Author Report Share Posted July 7, 2006 alright...thought i had it but no such luck! I've been reading so much and still can't find anythign for sure.My SB4200 modem is running firmware 1.4.9.0-SCM00-NOSH anyone know if this is the latest? does it handle larger numbers of TCP connections?What about the BEFW11SR V3.0 router/firewall? Are these routers crap for P2P? Any links discussing this?Really getting tired of searching for solutions! Link to comment Share on other sites More sharing options...
B2K24 Posted July 7, 2006 Report Share Posted July 7, 2006 Change global max connections to 200half open connections change to 100LvlLord's TCP/IP patch patch to 120peer disconnect interval *600Make sure your router firmware is updatedDownload Cablenut and use these settingsDefaultReceiveWindow = 768000DefaultSendWindow = 49152DisableAddressSharing = 1InitialLargeBufferCount = 200InitialMediumBufferCount = 480InitialSmallBufferCount = 640LargeBufferSize = 819200MaxFastTransmit = 64000MediumBufferSize = 150400Priority Boost = 0SmallBufferSize = 12800TransmitWorker = 32FastSendDatagramThreshhold = 4096EnableFastRouteLookup = 1EnablePMTUDiscovery = 1IgnorePushBitsOnReceives = 0GlobalMaxTcpWindowSize = 151840MaxFreeTcbs = 8000MaxHashTableSize = 16384MaxNormLookupMemory = 5000000SackOpts = 1SynAttackProtect = 1Tcp1323Opts = 1TcpLogLevel = 1TcpMaxDupAttacks = 3TcpMaxHalfOpen = 100TcpMaxHalfOpenRetired = 80TcpRecvSegmentSize = 1460TcpSendSegmentSize = 1460TcpTimedWaitDelay = 30TcpUseRFC1122UrgentPointer = 0TcpWindowSize = 151840MaxConnectionsPer1_0Server = 20MaxConnectionsPerServer = 10DefaultTimeToLive = 64DefaultUserTOSSetting = 0TcpMaxDataRetransmissions = 6DefaultTOSValue = 240restart your PC Link to comment Share on other sites More sharing options...
Switeck Posted July 7, 2006 Report Share Posted July 7, 2006 ndoggac's settings:Torrent Options › Number of upload slots per torrent: 8Advanced Options › net.max_halfopen: 192For net.max_halfopen value, the optimizer script you're using is DEAD WRONG. (Not your fault though, just whoever made it is by no means an expert on the subject...nor am I, but that one's way off.)For all but the fastest connections, it is only a tiny gain to increase net.max_halfopen value beyond the default of 8...and then you have to fight with Microsoft updates constantly setting your patched tcip.sys file back to default, causing massive problems!If you intend to run multiple torrents at once, reduce your upload slots considerably -- to 4 (the default!) or even lower if you have 4+ torrents typically going at once. Link to comment Share on other sites More sharing options...
Firon Posted July 11, 2006 Report Share Posted July 11, 2006 Surfboard, there's your problem. SB modems are junk. Link to comment Share on other sites More sharing options...
Switeck Posted July 11, 2006 Report Share Posted July 11, 2006 To work with weak hardware, you have to use more conservative settings...more aggressive settings just make the problem worse. Link to comment Share on other sites More sharing options...
Firon Posted July 12, 2006 Report Share Posted July 12, 2006 Surfboards will drop you even when you're not using BT, they're just really really bad. ESPECIALLY the 4200. Link to comment Share on other sites More sharing options...
SL83 Posted July 12, 2006 Report Share Posted July 12, 2006 Both surfboards I have had: SB4200 and currently SBV5120 are wonderful.What kinds of problems have you had with them? And what is your preferred cable modem? Link to comment Share on other sites More sharing options...
Firon Posted July 12, 2006 Report Share Posted July 12, 2006 Really? I (and a lot of other people) had awful disconnect problems with the 4200. Just randomly decides to drop the connection.I've got a Terayon TJ 715x now and I've never been happier. Link to comment Share on other sites More sharing options...
SL83 Posted July 12, 2006 Report Share Posted July 12, 2006 Terayons are great modems. Back when OptOnline offered them, they were the only modems that were capable of getting the full 10Mbps down. That was like 5 years ago or so. Link to comment Share on other sites More sharing options...
ndoggac Posted July 12, 2006 Author Report Share Posted July 12, 2006 Even with lowered settings recommended above, I'm still getting the dropped connections. I think the only conclusion is hardware issues....I've read around a little more and read about the linksys router (befw11s4) maintaining stale tcp connections for 5 days. any truth to this?? if this is true, this is what could be killing my modem. i've read that the wrt54g version 4 or before can be updated with 3rd party firmware to customize this setting. I think I'm going to try this next. why linksys wouldn't update their firmware for the befw11s4 to fix this stupid setting is beyond me.If this new router doesn't solve the problem, I'll probably end up getting a new modem too.....dang....more money!! grrr. Link to comment Share on other sites More sharing options...
SL83 Posted July 12, 2006 Report Share Posted July 12, 2006 Test uTorrent WITHOUT your router. Just directly connect to your modem with cat5 and see if uTorrent makes your connection die out. If it doesn't, then I'd say your router is causing the issues. Link to comment Share on other sites More sharing options...
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