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Thread: Windows XP strange behavior in file sharing

  1. #1
    Raptor455
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    Windows XP strange behavior in file sharing

    I have been using windows Me for a long time and it always worcked well. My computer served more like a server than anything else. It was hosting an FTP server with bulletproof and filesharing with DC++. Everything worcked well for monts except for the fact that i had to reboot each few days because the computer was getting slower and slower. During all these months my computer was using 100% of his upload bandwith all the time. My connection speed is uploa 40kbps and download 200kbps. IT's a DSL connection.

    Last week, I decided to upgrade to windows XP in an attempt to solve this little problem. After the installation (i formatted and made a clean install), everything seemed good and my browsing speed wich was very slow in windows ME even when i was not sharing had never been that fast. I installed DC++ and started sharing just as i had done before. After a while my downloads and uploads where starting to suddenly drop and i was losing my connection. I contacted my ISP made tons of changes and nothing ever worcked. I was wondering if it was my line, my ISP, my software or windows.

    So I formated my computer again and again made a clean install of Windows ME. All of my problems got solved. If checked the counter of DC++ and the one of the little software that connect to my ISP in windows Me and there were giving around 40 kbps DC++ was always saying that i had uploaded a few megs less wich is normal.

    Then i reformated and reinstalled windows XP and started experimenting. I set my ISP following the instruction given by my ISP but the problem came again. I resolved one my problem in a strange way. To repair my connection that stopped each 2 hours i simply let one Internet explorer page open and strangely my connection works forever. I have not yet been able to find a trick for the other problem wich is the slow speed of my connection. But i also noticed something strange wich again only apply in windows XP. If i look at the bytes sent and received from my network card during a test run where i was uploading at full speed, i get approximately 1 200 megs in upload while DC++ sent only 755 megs of course i didnt use anything except when i loaded the Internet Explorer page. If i do some calculation 1200*1024/by 515(the number of minutes connected/60(60s/min)=39.8 kb/s wich is unsurprisigly my connection speed in upload but if i do the same in with the results of DC++, i get a speed of 25 kbps i did many test run like this one with variable duration and the results are also always in this range. Considering the fact that these 15 kbps only disappear with Xindows Xp and not with windows Me i'm inclined to think that again it's some strange behavior of XP.

    As you have guessed i'm not used with sindows XP but i still had lots of time to lose with his settings. So the craps like disconnect after... Disconnect when not useful and all these crap that i could find are disabled.

    I was wondering if someone is familiar enough with windows XP to know hot to make windows XP use internet efficiently for something else than browsing because it really is bothering me and after lots of search on internet i found that tons of people are having the same problem but they simply dont seem to understand that it's windows XP the problem.

    I simply want a stable connection and the fastest upload speed possible i dont really care about the rest.

    Thancks a lot sorry for the lenght of the mail but i tried to put all the important information available.

  2. #2
    fem the retarded rabbit mccoffee's Avatar
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    So are you on xp or windows me now?? Also who is u provider and also advertised speed??
    Comptia a+ n+

  3. #3
    Raptor455
    Guest
    Now im on windows XP since its the one that i want to understand Windows ME is working i dont need to check for now.

    The advertised speed is 40kbps upload (what i get from my network card) and 200 kbps download i didnt checked it.

    My ISP is canadian. I live in Montreal Quebec. It's called bell sympatico and its the biggest ISP in the province of quebec.

  4. #4
    fem the retarded rabbit mccoffee's Avatar
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    Take a tcpip analyzer cut and paste every thing below ip information. I have to check mtu and sutt
    Comptia a+ n+

  5. #5
    Thomas_B
    Guest
    Hi there. Not to screw up your post man, but i got Exactly the same problem as you have.
    I run Microsoft Windows XP Pro. On a 8000/704 Kbps High Speed DSL line. I live in Norway and my ISP is Nextgentel.
    My really problem is that my connection seems to Disconnect all the time and when i Upload things the speed just suddenly drops down to 10 kb/sec. The connection is so unstable that i just wanna throw my pc as far i can :P
    So if u could check my TCP/IP analyce for me to mccoffe to and see if its something wrong with my settings i would be very thankfull for that



    TCP properties for IP = 80.202.XXX.XX ()
    Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)
    Notes: Read the Analyzer FAQ if the above is not your IP address.

    TCP options string = 020405b40103030201010402
    MTU = 1500
    MTU is fully optimized for broadband.
    MSS = 1460
    Maximum useful data in each packet = 1460, which equals MSS.

    Default Receive Window (RWIN) = 255552
    RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
    Unscaled Receive Window = 63888

    For optimum performance, consider changing RWIN to a multiple of MSS.
    Other values for RWIN that might work well with your current MTU/MSS:
    513920 (MSS x 44 * scale factor of 8)
    256960 (MSS x 44 * scale factor of 4)
    128480 (MSS x 44 * scale factor of 2)
    64240 (MSS x 44)
    bandwidth * delay product:

    Your RcvWindow limits you to: 10222.08 kbps (1277.76 KBytes/s) @ 200ms
    Your RcvWindow limits you to: 4088.832 kbps (511.104 KBytes/s) @ 500ms
    MTU Discovery (RFC1191) = ON
    Time to live left = 47 hops

    TTL value is ok.
    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON
    IP type of service field (RFC1349) = 01011100

    Precedence (priority) = 100 (flash override)
    Delay = 1 (low delay)
    Throughput = 1 (high throughput)
    Reliability = 0 (normal reliability)
    Cost = 1 (low cost)

  6. #6
    Elite Member Norm's Avatar
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    Raptor, have you got all the XP critical updates from MS.

    If I remember correctly there is a worm (or 2) that will infect a XP system that hasn't been patched as soon as it connects to the web.
    Install the updates, then do a thorough virus scan with updated anti virus protection.

    Just a thought, hope it helps.

    Also, spyware is a major cause of connection troubles. Use updated versions of spybot, and adaware to scan your system, and remove any they find.

    In my experience I have found 99.9% of problems are software related. Hardware problems are rare, but do happen from time to time.

  7. #7
    Raptor455
    Guest
    AS asked my IP analysed. As i said my problem is quite common and im happy to see that even here its aknowledged. I have all windows critical updates but i didnt scan my comp. never though of a worms immediatelyu after a format but it is possible as fot the spyware all also thy to kill them. I know that my problem is software but i still dont understand what it can be. aniway ill do everything you asked make a test run and come back on the resuts as soon as possible. I hope the answer to this problem will be found so that ill be able to spred the good news to all the other people having the problem. if anibody else have the problem he is welcomed particularly if he as information as to make finding the problem far easier.


    ---------------------------
    SpeedGuide.net TCP/IP Analyzer


    TCP properties for IP = 67.68.204.25 ()
    Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
    Notes: Read the Analyzer FAQ if the above is not your IP address.

    TCP options string = 020405a001010402
    MTU = 1480
    MTU is optimized for Windows XP PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
    MSS = 1440
    MSS is optimized for Windows XP PPPoE DSL broadband. If not, consider raising MTU to 1500 for maximum throughput.

    Default Receive Window (RWIN) = 64800
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled Receive Window = 64800

    RWIN is a multiple of MSS
    Other values for RWIN that might work well with your current MTU/MSS:
    506880 (MSS x 44 * scale factor of 8)
    253440 (MSS x 44 * scale factor of 4)
    126720 (MSS x 44 * scale factor of 2)
    63360 (MSS x 44)
    bandwidth * delay product:

    Your RcvWindow limits you to: 2592 kbps (324 KBytes/s) @ 200ms
    Your RcvWindow limits you to: 1036.8 kbps (129.6 KBytes/s) @ 500ms
    MTU Discovery (RFC1191) = ON
    Time to live left = 116 hops

    TTL value is ok.
    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON
    IP type of service field (RFC1349) = 00000000





    11008219 connections tested since 03.10.2001.
    Analyzer version: 1.05 - updated 08.14.2003.

  8. #8
    Raptor455
    Guest
    I was actually infected by a virus and removing it as long with all my spyware really solved my problem. What i dont understand is how he could always be here even when i just formatted my computer.

    Well i really want to kill myself for not thinking of this eventuallity. Aniway thancks a lot and ill try to help people in other board solve their problem if it is the same.


  9. #9
    fem the retarded rabbit mccoffee's Avatar
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    yeah ur settings looked good
    Comptia a+ n+

  10. #10
    Elite Member Norm's Avatar
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    Thumbs up

    Originally posted by Raptor455
    I was actually infected by a virus and removing it as long with all my spyware really solved my problem. What i dont understand is how he could always be here even when i just formatted my computer.

    Well i really want to kill myself for not thinking of this eventuallity. Aniway thancks a lot and ill try to help people in other board solve their problem if it is the same.

    Glad you found the problem Raptor.

    The newer worms exploit a windows vulnerabilty, and if you aren't patched with the fix, you get infected as soon as you go online. (If you have an always on connection, and no firewall/router)

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