Results 1 to 7 of 7

Thread: Help, 2 pc's same network - way different speeds

  1. #1
    Junior Member
    Join Date
    May 2006
    Posts
    3

    Help, 2 pc's same network - way different speeds

    Ok, a couple of computers here and have tested on other peoples here. My main PC gets between 4.8 MBps and 5.1 MBps. All the other machines I have plugged into the same router get 6.0 + MBps using the speed tests. I have done it over and over again with the same results. This PC has no software firewall, no sypware or virus issues either. I have even switched NIC's and cables, nothing helps. I have used TCP Optimizer and tried many different RWIN values, low to high, all using the right multiples. Nothing will get this thing moving. It is an Athlon XP3000+, 1GB PC3200, SATA drives, yadda, yadda. The PC shouldn't be the bottle neck, so now I'm stumped! Any help would rock. Thanks.

    TCP options string = 020405b40103030301010402
    MTU = 1500
    MTU is fully optimized for broadband.
    MSS = 1460
    Maximum useful data in each packet = 1460, which equals MSS.
    Default TCP Receive Window (RWIN) = 513920
    RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
    Unscaled TCP Receive Window = 64240

    RWIN is a multiple of MSS
    Other RWIN values that might work well with your current MTU/MSS:
    513920 (MSS x 44 * scale factor of 8) <-- current value
    256960 (MSS x 44 * scale factor of 4)
    128480 (MSS x 44 * scale factor of 2)
    64240 (MSS x 44)
    bandwidth * delay product (Note this is not a speed test):

    Your TCP Window limits you to: 20556.8 kbps (2569.6 KBytes/s) @ 200ms
    Your TCP Window limits you to: 8222.72 kbps (1027.84 KBytes/s) @ 500ms
    MTU Discovery (RFC1191) = ON
    Time to live left = 54 hops
    TTL value is ok.
    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON
    IP type of service field (RFC1349) = 00000000 (0)

  2. #2
    fem the retarded rabbit mccoffee's Avatar
    Join Date
    Nov 2001
    Location
    Cleveland, Ohio, United States
    Posts
    13,365
    Keep both machines on same rwin value same duplex since you have a router there is no really way to say this computer gets even banwith unless you set up qos in xp something similar where each computer gets 50 percent.
    Comptia a+ n+

  3. #3
    Junior Member
    Join Date
    May 2006
    Posts
    3
    Ok, setup 2 machines with everything identical for settings. 1 machine I get 6.4, this machine 5.1. Just tried my Linux file server and I get 6.4 on that as well! I'm just about ready to format this darn thing. I've disabled all anti virus and sypware software, no firewall, etc.

  4. #4
    fem the retarded rabbit mccoffee's Avatar
    Join Date
    Nov 2001
    Location
    Cleveland, Ohio, United States
    Posts
    13,365
    A format will not fix the speed issue i could tell you that right now it's just how the network works.
    Comptia a+ n+

  5. #5
    Junior Member
    Join Date
    May 2006
    Posts
    3
    I'm confused, if all the other computers in my house are getting faster speeds, formatting this one won't help? There has to be a reason, this is the fastest computer in the house.

  6. #6
    fem the retarded rabbit mccoffee's Avatar
    Join Date
    Nov 2001
    Location
    Cleveland, Ohio, United States
    Posts
    13,365
    Since you are on a network it doesn't matter about pc specs it's all about priorty If all the tcp optimizer settings are same on all the machines all network cables are the same cat same duplex on network cards then it doesn't really matter if formated or not. Since that's just how the router disturbated throughput.
    Comptia a+ n+

  7. #7
    Elite Member trogers's Avatar
    Join Date
    Jan 2005
    Location
    Bangkok, Thailand
    Posts
    12,323
    Before you reformat your faster PC which has the slower connection, switch the cable ports with the other PC at the router and see if connection speed changes.

Similar Threads

  1. Network newb - VLAN's subnets (long)
    By tanyalarz in forum Networking Forum
    Replies: 3
    Last Post: 04-01-06, 09:56 AM
  2. *Pls* Nid help on Tweaking DSL connection speed....
    By YoNgZ in forum Broadband Tweaks Help
    Replies: 9
    Last Post: 01-14-06, 12:02 PM
  3. TCP Optimizer issue
    By malaac in forum Broadband Tweaks Help
    Replies: 2
    Last Post: 01-12-06, 09:34 AM
  4. 15Mb speeds available but not on all my PC's
    By mopezio in forum General Broadband Forum
    Replies: 5
    Last Post: 11-17-05, 02:47 AM
  5. Replies: 1
    Last Post: 05-10-05, 06:08 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •