Dittoz Posted March 25, 2005 CID Share Posted March 25, 2005 Ok I'm out of ideas. I have Comcast's upgraded 6mbit service. The third comcast tech guy just left here telling me my connection was fine, and there wasn't anything else they could do. My speeds average between 3.5-4.5 download. Below is a typical result. Before this problem started I was getting 5.8-6.0 every time. When the problem first started I was getting really poor latency and about 2% packet loss. Now I no longer have the packet loss problem, but latency is very inconsistent. Pinging yahoo and google can vary from low 30ms to 120ms at any given time. My upload speed is pretty near what it is supposed to be. The tech guy said my DOCSIS or whatever that is was -2. He said that was as near perfect as it gets. I use Windows XP SP2 and have tried both the default settings and the suggested 6000/768 settings with Cablenut. Nothing seems to help. Any advice would be GREATLY appreciated! Thanks in advance! :::.. Download Stats ..::: Connection is:: 4216 Kbps about 4.2 Mbps (tested with 2992 kB) Download Speed is:: 515 kB/s Tested From:: http://www.testmy.net/ Test Time:: Fri Mar 25 2005 14:58:40 GMT-0600 (Central Standard Time) Bottom Line:: 75X faster than 56K 1MB download in 1.99 sec Diagnosis: Awesome! 20% + : 30.73 % faster than the average for host (comcast.net) Validation Link:: https://testmy.net/stats/id-MI9KU5RZ0 Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 25, 2005 Author CID Share Posted March 25, 2005 Also I have no firewall, no spyware, no adware, and my virus scan is clean. Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 25, 2005 CID Share Posted March 25, 2005 hey Dittoz and welcome to the forum try this go to start-run-cmd type pathping testmy.net and hit enter now wait several minutes for it to complete when its done, rightclick choose all and hit enter now paste all in a new post VanBuren Quote Link to comment Share on other sites More sharing options...
php Posted March 25, 2005 CID Share Posted March 25, 2005 welcome to the forum Dittoz that may be due to recent upgrades or testing in your area...I'm not the Comcast expert though, Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 25, 2005 Author CID Share Posted March 25, 2005 Microsoft Windows XP [Version 5.1.2600] © Copyright 1985-2001 Microsoft Corp. C:Documents and SettingsDittoz>pathping testmy.net Tracing route to testmy.net [67.19.36.6] over a maximum of 30 hops: 0 DITTOZ.rthfrd01.tn.comcast.net [68.52.100.177] 1 * * * Computing statistics for 25 seconds... Source to Here This Node/Link Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address 0 DITTOZ.rthfrd01.tn.comcast.net [68. 52.100.177] 100/ 100 =100% | 1 --- 100/ 100 =100% 0/ 100 = 0% CHRIS [0.0.0.0] Trace complete. C:Documents and SettingsDittoz> Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 25, 2005 Author CID Share Posted March 25, 2005 By the way...thanks for the welcome Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 25, 2005 Author CID Share Posted March 25, 2005 Also I just ran this test, and it said I had a Duplex mismatch condition. What is that and how do I fix it? TCP/Web100 Network Diagnostic Tool v5.3.3d click START to begin Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done running 10s outbound test (client to server) . . . . . 795.79Kb/s running 10s inbound test (server to client) . . . . . . 3.46Mb/s Your PC is connected to a Cable/DSL modem Alarm: Duplex mismatch condition exists: Host set to Full and Switch set to Half duplex click START to re-test Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 25, 2005 Author CID Share Posted March 25, 2005 Sorry...meant to post the details of that test. Here they are. WEB100 Kernel Variables: Client: localhost/127.0.0.1 AckPktsIn: 440 AckPktsOut: 0 BytesRetrans: 42340 CongAvoid: 130 CongestionOverCount: 0 CongestionSignals: 1 CountRTT: 249 CurCwnd: 65700 CurMSS: 1460 CurRTO: 350 CurRwinRcvd: 824320 CurRwinSent: 5840 CurSsthresh: 59860 DSACKDups: 0 DataBytesIn: 0 DataBytesOut: 4417960 DataPktsIn: 0 DataPktsOut: 3026 DupAcksIn: 181 ECNEnabled: 0 FastRetran: 1 MaxCwnd: 119720 MaxMSS: 1460 MaxRTO: 450 MaxRTT: 240 MaxRwinRcvd: 824320 MaxRwinSent: 5840 MaxSsthresh: 59860 MinMSS: 1460 MinRTO: 300 MinRTT: 90 MinRwinRcvd: 51520 MinRwinSent: 5840 NagleEnabled: 1 OtherReductions: 0 PktsIn: 440 PktsOut: 3026 PktsRetrans: 29 X_Rcvbuf: 103424 RcvWinScale: 7 SACKEnabled: 3 SACKsRcvd: 72 SendStall: 0 SlowStart: 119 SampleRTT: 100 SmoothedRTT: 120 X_Sndbuf: 103424 SndWinScale: 4 SndLimTimeRwin: 0 SndLimTimeCwnd: 10061684 SndLimTimeSender: 2789 SndLimTransRwin: 0 SndLimTransCwnd: 1 SndLimTransSender: 1 SndLimBytesRwin: 0 SndLimBytesCwnd: 4417960 SndLimBytesSender: 0 SubsequentTimeouts: 0 SumRTT: 29440 Timeouts: 0 TimestampsEnabled: 0 WinScaleRcvd: 4 WinScaleSent: 7 DupAcksOut: 0 StartTimeUsec: 884266 Duration: 10070022 c2sData: 2 c2sAck: 2 s2cData: 8 s2cAck: 4 half_duplex: 0 link: 100 congestion: 0 bad_cable: 0 mismatch: 1 spd: 0.00 bw: 5.18 loss: 0.000330469 avgrtt: 118.23 waitsec: 0.00 timesec: 10.00 order: 0.4114 rwintime: 0.0000 sendtime: 0.0003 cwndtime: 0.9997 rwin: 6.2891 swin: 64.0000 cwin: 0.9134 rttsec: 0.118233 Sndbuf: 8388608 aspd: 5.31178 Checking for mismatch on uplink (speed > 50 [0>50], (xmitspeed < 5) [0.78<5] (rwintime > .9) [0>.9], (loss < .01) [3.30<.01] Checking for excessive errors condition (loss/sec > .15) [3.30>.15], (cwndtime > .6) [0.99>.6], (loss < .01) [3.30<.01], (MaxSsthresh > 0) [59860>0] Checking for 10 Mbps link (speed < 9.5) [0<9.5], (speed > 3.0) [0>3.0] (xmitspeed < 9.5) [0.78<9.5] (loss < .01) [3.30<.01], (mylink > 0) [3.0>0] Checking for Wireless link (sendtime = 0) [3.0E=0], (speed < 5) [0<5] (Estimate > 50 [5.18>50], (Rwintime > 90) [0>.90] (RwinTrans/CwndTrans = 1) [0/1=1], (mylink > 0) [3.0>0] Checking for DSL/Cable Modem link (speed < 2) [0<2], (SndLimTransSender = 0) [1=0] (SendTime = 0) [3.0E-4=0], (mylink > 0) [3.0>0] Checking for half-duplex condition (rwintime > .95) [0>.95], (RwinTrans/sec > 30) [0>30], (SenderTrans/sec > 30) [0.1>30], OR (mylink <= 10) [3.0<=10] Checking for congestion (cwndtime > .02) [0.99>.02], (mismatch = 0) [1=0] (MaxSsthresh > 0) [59860>0] estimate = 5.18 based on packet size = 11Kbits, RTT = 118.23msec, and loss = 3.30469E-4 The theoretical network limit is 5.18 Mbps The NDT server has a 8192.0 KByte buffer which limits the throughput to 541.30 Mbps Your PC/Workstation has a 805.0 KByte buffer which limits the throughput to 53.19 Mbps The network based flow control limits the throughput to 7.72 Mbps Client Data reports link is 'T1', Client Acks report link is 'T1' Server Data reports link is 'OC-48', Server Acks report link is 'T3' Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 25, 2005 CID Share Posted March 25, 2005 you have alot of packetloss, try bypassing your router VanBuren Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 26, 2005 Author CID Share Posted March 26, 2005 I'm not using a router Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 26, 2005 CID Share Posted March 26, 2005 change the LAN cable between your modem and PC, also powercycle your modem, leave it off for 30 full seconds if that dosent help, call your ISP VanBuren Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 26, 2005 Author CID Share Posted March 26, 2005 Changed my Ethernet cable and power cycled my modem. No change. I've had 4 tech's out here from Comcast. Their supervisor knows me on a first name basis. Unfortunately, they say there's nothing they can do for me. They say my signal is great and don't understand why I'm having a problem. And I have no idea either. Like I said, it worked fine for about a month after the upgrade, and then bam. Sucky speeds. But thanks for your help. I appreciate it. Quote Link to comment Share on other sites More sharing options...
pitbull481 Posted March 26, 2005 CID Share Posted March 26, 2005 my download connection went down by 2Mb or more all this week. Quote Link to comment Share on other sites More sharing options...
sampugna Posted March 26, 2005 CID Share Posted March 26, 2005 what city / area are u located? could be tied to ur issue. check to see if u have others in ur area with same thing. example - node in illinois i am attached to is overloaded, when everyone on u can get no more than 4 down, when clear it's 6.1 . . . Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 28, 2005 Author CID Share Posted March 28, 2005 I'm in the Nashville, TN area. They just upgraded this area a couple of months ago. Maybe more people are starting to sign up and then sign up for the 6mbit upgrade. Hopefully I'll see an improvement soon, but I'm not holding my breath Quote Link to comment Share on other sites More sharing options...
sampugna Posted March 28, 2005 CID Share Posted March 28, 2005 I'm in the Nash . . . but I'm not holding my breath go ahead and recontact support - should be in 5's if you indeed have upgrade. support can receive up and down stats, if not whre should be ask for credit, once u get above level 3 support u should get someone more intelligent to discuss issue with. DON"T GIVE UP - they thrive on those that let it go . . . Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 28, 2005 Author CID Share Posted March 28, 2005 I followed your advice...Called and threatened to cancel. They're sending another tech out this afternoon. I'll post the results of that as soon as they leave. Quote Link to comment Share on other sites More sharing options...
peepnklown Posted March 28, 2005 CID Share Posted March 28, 2005 I would do the following; hopefully you are somewhat computer savvy. This should help tweak your Windows XP SP2 https://www.speedguide.net/read_articles.php?id=1497 This should help tweak your Windows XP in general https://www.speedguide.net/downloads.php This should further help (thanks to VAN) https://testmy.net/topic-2097 Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 28, 2005 Author CID Share Posted March 28, 2005 Well the Comcast Tech just left. He was very helpful, climbed through the attic. Looked at my connection. Replaced all my cable lines. Couldn't find anything wrong at all. Said my signal was fine. But I'm still getting horrible speeds and some packet loss. He saw it, and said "Man, that just isn't right". He told me he was going to call his supervisor and tell him that I've got problems but he can't figure out what it is. Quote Link to comment Share on other sites More sharing options...
Dittoz Posted March 29, 2005 Author CID Share Posted March 29, 2005 Supervisor is coming out to my home this morning...I'll post the results after he leaves. Quote Link to comment Share on other sites More sharing options...
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