LAN does not function

By mkbutan
Aug 11, 2010
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  1. hi
    i am M.K.Butan
    few days back we started our new network with 1mbps, b band internet connection with 6 PC (all p4) 1- wireless with1+ 4 RJ45 ports(1 I/P+ 4 O/P) router & 1-24 +1 (25) port 3COM switch
    our engineer started the work and left in between

    now when i connect internet with the switch the LAN does not function cant share any file with any computer
    i have connected modem RJ45 wire to the W/L i/p port Router port 1 to one PC (Server) port 2 to 3COM Switch on port 1(to the switch)port 2,3,4,5,6 to other PC 2,3,4,5,6 respectively
    now we brought 6 more PC to be connected in the LAN with the internet connection on all the PC
    pl help asap

    Attached Files:

  2. Ididmyc600

    Ididmyc600 TechSpot Chancellor Posts: 2,251

    send us your address and a fee of £1000 and i;ll be round in a jiffy...

    no seriously do a google on basic networking and your answer can be found

    no doubt its to do with IP address and structure of the network, your picture seems like a straight forward setup and with a google should be easy to setup.
  3. jobeard

    jobeard TS Ambassador Posts: 13,353   +301

    Multiple levels of configuration become complex quickly.

    Let's use the Router, it's attached PC and and other systems attached to
    ports 3,4; ie ignore the switch for now

    ASSUMING all those systems have Internet access (! please correct if not so !)

    THEN
    1. you need the same WORKGOUP names in all systems
    2. you need Simple File Sharing enabled
    3. and your firewall must allow ports 137,138,139 for all lan addresses

    Some config info would help
    • Which System/version/sp-level are on each system?
    • Which firewall are you using?

    The \Documents & Settings\All User\Shared Documents folder is the easiest to see and access on the lan:
    Suggest the ShareName imply the System+SharedDocs (somehow),
    eg A-SharedDocs, B-SharedDocs for SystemA and SystemB

    you should be able to access theses using
    \\systemName\shareName
    from the RUN box (start->run and enter \\systemName\shareName)

    follow-up with your results
  4. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    Let the OP tells us what type of network this is?

    Domain or Simple network?

    What brand and make of the router you have there?
    3Com Switch which model? (this will let us know here if you have un-managed or managed)

    Any servers?
    Or just Workstations, Desktops, Laptops
    Are there any wireless or remote users on VPN?

    If you just got a simple wireless router and 3Com 24-port switch all connected to XP, Vista or 7 OS?

    Then the above post will solve your issue.
  5. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    Thousand pounds wow? More like $250 a hour here to go off site at the last moment to a new client site. Charge them for going to their site on-top of that rate. That's cheap too.
  6. mkbutan

    mkbutan Newcomer, in training Topic Starter

    thanks for all
    all 11PC (PC-2/ PC -12) are under sharing
    all 12 PC'S are OLD Rental PC's pre loaded with Win - XP OS
    all cat 5 wires are less then 20 ft's
    Router=NETGARE Wireless 654 Router WGR 614 (NEW)
    Switch= 3-COM Super Stack II Switch 1000 (OLD second hand)
    all wire network with cat5
    no VPN & Remote user
    and how i will come to know that what is our network as asked by Mr. TIPSTIR
    Let the OP tells us what type of network this is?
    Domain or Simple network?

    pl find the attachment of network
    thanks once again

    Attached Files:

  7. mkbutan

    mkbutan Newcomer, in training Topic Starter

    pl help


    thanks for all
    all 11PC (PC-2/ PC -12) are under sharing
    all 12 PC'S are OLD Rental PC's pre loaded with Win - XP OS
    all cat 5 wires are less then 20 ft's
    Router=NETGARE Wireless 654 Router WGR 614 (NEW)
    Switch= 3-COM Super Stack II Switch 1000 (OLD second hand)
    all wire network with cat5
    no VPN & Remote user
    and how i will come to know that what is our network as asked by Mr. TIPSTIR
    Let the OP tells us what type of network this is?
    Domain or Simple network?

    pl find the attachment of network
    thanks once again

    Attached Files:

  8. mkbutan

    mkbutan Newcomer, in training Topic Starter


    thanks for all
    all 11PC (PC-2/ PC -12) are under sharing
    all 12 PC'S are OLD Rental PC's pre loaded with Win - XP OS
    all cat 5 wires are less then 20 ft's
    Router=NETGARE Wireless 654 Router WGR 614 (NEW)
    Switch= 3-COM Super Stack II Switch 1000 (OLD second hand)
    all wire network with cat5
    no VPN & Remote user
    and how i will come to know that what is our network as asked by Mr. TIPSTIR
    Let the OP tells us what type of network this is?
    Domain or Simple network?

    pl find the attachment of network
    thanks once again

    Attached Files:

  9. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    Oh my you doodled on a paper. I am looking at it now..

    Are all 24-ports in use? You should connect the server PC1 to the external switch. Which netgear router is that? Model and such?

    Every node (device) should have it's own dedicated port so you won't have degrade in through-put. Oh is that WGR614 wireless router?
  10. mkbutan

    mkbutan Newcomer, in training Topic Starter

    no
    only 1-12 are in use
    pl find the attachment

    Attached Files:

  11. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    Then connect the PC1 to that switch off load the router. Unless you have VLAN ports?
     
  12. mkbutan

    mkbutan Newcomer, in training Topic Starter

    sir
    3COM switch have 24+1 25 RJ45 Port's
    http://support.3com.com/infodeli/tools/switches/s_stack2/pdf/16900au5.pdf
    ROUTER=Wireless-G Router WGR614v10
    http://kb.netgear.com/app/products/model/a_id/12594
    Router RJ45 Port 1 ->SERVER(TN X Server 001)
    Port 1 of 3COM ->Router RJ45 Port 2
    Port 2 of 3COM ->Workstation 1 (TN x 02) IP Add. 196.168.1.11
    Port 3 of 3COM ->Workstation 2 (TN x 03) IP Add. 196.168.1.12
    Port 4 of 3COM ->Workstation 3 (TN x 04 ) IP Add. 196.168.1.13
    Port 5 of 3COM ->Workstation 4 (TN x 05 ) IP Add. 196.168.1.14
    Port 6 of 3COM ->Workstation 5 (TN x 06 ) IP Add. 196.168.1.15
    Port 7 of 3COM ->Workstation 6 (TN x 07 ) IP Add. 196.168.1.16
    Port 8 of 3COM ->Workstation 7 (TN x 08 ) IP Add. 196.168.1.17
    Port 9 of 3COM ->Workstation 8 (TN x 09 ) IP Add. 196.168.1.18
    Port 10 of 3COM ->Workstation 9 (TN x 10) IP Add. 196.168.1.19
    Port 11 of 3COM ->Workstation 10 (TN x 11) IP Add. 196.168.1.20
    Port 12 of 3COM ->Workstation 11 (TN x 12) IP Add. 196.168.1.21
    (TN X xx- is just a workstation's NAME)
  13. mkbutan

    mkbutan Newcomer, in training Topic Starter

    Sir
    what is VLAN Port ?
  14. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    VLAN = Virtual Local Area Network (your office is LAN) the internet is the WAN = Wide Area Network. VPN = Virtual Private Network etc.

    Did you do what I told you to do? Does everything work? You need to hire on site NT (network tech to continue on as if you don't then you'll have to manage your network there. Make sure all PC's mac address: 00:00:00:00:00 and the matching IP all are seen by the DHCP Server (Router) That info is usually in DHCP Client Table. Each brand of router is going to show it or call it differently.

    So okay where are you at now with the current setup?
  15. jobeard

    jobeard TS Ambassador Posts: 13,353   +301

    yes - - what's your current status or issue causing problem(s)?
  16. mkbutan

    mkbutan Newcomer, in training Topic Starter

    hi
    still hanging up
    no LAN
    I don't know what's the problem is ?
    My network is working with INTERNET but not with the LAN:confused:
    pl. help
  17. jobeard

    jobeard TS Ambassador Posts: 13,353   +301

    Use the Split-Halves techique to simplify the investigation:
    forget issues beyond the first router and concentration on the devices attached to it first. Solutions needed there can then be applied to the remainder and the whole network can then be reevaluated​
  18. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    Does the Router see the MAC addresses and IP addresses for these nodes (network devices) Has to be setting in that manage switch. You know you can remove the router and see how the 12 PCs and 1 Server can ping each other. Are those PCs and the Server do they have Static IP address,

    IP addresss: 196.168.1.11
    Subnet mask: 255.255.255.0
    Default Gateway: 192.168.1.1\


    First you got to take whole of the network shutdown everything all PCs, printers, AP, everything you got turn it off. Then turn on the router (reset the router also. Update the firmware.

    Switch unplug all the connections just keep the router and the switch active. Connect the server to port 1 and see if you can pickup the LAN and WAN. Connect PC2 to the switch then see if you can pickup LAN and WAN and see if the router can see PC1, PC2 and can PC1 see PC2 or PC2 can see PC1. This is how you have to do it. Otherwise you'll be there all day trying to narrow down the issue.
  19. mkbutan

    mkbutan Newcomer, in training Topic Starter



    Trillions of thanks for your valuable replays
    the site is about 60-65 Kmt's from my home
    i will try it and let u know pl don't stop sending your suggestions if it works for me then can also work for others
    again thanks for your valuable time. :grinthumb
  20. tipstir

    tipstir TS Ambassador Posts: 4,616   +82

    No problem! Who's stopping! I've been helping users like youreself with all sort of questions on Prodigy & AOL since 1991. Today still doing it! But anyway listen you need to get out to that location one evening after everyone is gone home and take your time bring some food and fix the issue in hand. You got a lot of info above to help you out. Report back your progress as you know we're all here to help and advise you.
  21. mkbutan

    mkbutan Newcomer, in training Topic Starter

    Trillions of thanks for your valuable replays; again thanks for your valuable time.

    I will be in touch for this issue and any other in future

    (yes we will & yes I will):grinthumb
  22. mkbutan

    mkbutan Newcomer, in training Topic Starter

    thanks
    we r able to get 5 PC in LAN
    still working on it


    GOD made the MAN;
    MAN made the ELECTRONICS ;
    with the ELECTRONICS MAN made the COMPUTER
    with the COMPUTERS MAN made the NETWORK (LAN)
    with the NETWORKS( LAN's) MAN made the INTERNET(WAN)
    with the INTERNET(WAN's) MAN made !@#$%%^^&*(*()_+_|????????????
    still struggling for the INVENTION's from the INNOVATION's

    hates off to all those pupil's (like u on the TECH SPOT)


    THANK's


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