How can I build a LAN without a router?

Umm Mariam December 29, 2012

I read the MakeUseOf article about building a LAN without a router. (//

However, while the other PCs show up on the network I can’t open any resources on them. It asks for a network password even though those PCs don’t have one. What can I do to fix this? I’m using Windows 7.

  1. Emmanuel Asuncion
    June 22, 2013 at 2:00 am

    You must specify first what file you want to share. Go to Public Documents>right click>properties>sharing tab>share and choose recipient.

  2. Flavius Graur
    January 22, 2013 at 3:32 am

    Windows XP and later have a policy active by default that prevents anyone outside from connecting if there is no password set. One thing you can try (which always worked for me) is to disable that policy.

    To do this(in Win 7) you need to open "Local Security Policy" (found in Control Panel>Administrative Tools) and inside, in Local Policies select Security Options.

    On the list on the righthand side you need to disable
    "Accounts: Limit local account use of blank passwords to console logon only".

    If problems still occur, you could try also disabling "Network Access: Restrict anonymous access to named pipes and shares" and enabling "Network Access: Let Everyone permissions apply to anonymous users"

  3. Nikhil Chandak
    December 30, 2012 at 6:00 am

    check these - // - by MUO
    or I think u can also get a video for this on youtube or on daily-motion

  4. Anonymous
    December 29, 2012 at 11:41 pm

    I'm assuming you actually mean "without a file server", since you must have a router or to be assigning IP addresses to the computers... if you had a smart switch with DCHP, I doubt you'd be asking this question at all.

    ha14 has the simplest solution to your problem.

  5. Zaid Zidan
    December 29, 2012 at 11:09 pm

    I went through this too and I tried everything just as others have wrote, but for some reason nothing helped ... I found that the easiest way to get access is to put a password on every computer (it wants a password even though there's none, give it a password)

  6. Christopher Clark
    December 29, 2012 at 9:20 pm

    Both are great but the option that i do is just type in the computername\username and then the password. this is expanding on Jan's second idea also. so if you are trying to access computerA while at computerB you would type computerA\user1 and then the pass. this is assuming you are sharing a folder with everyone on computer A.

    • Jack Cola
      December 29, 2012 at 11:18 pm

      Maybe you want to have a look into

      Connect your computer to your modem via a LAN cable, set Connectify to share over WiFi, then connect to the new WiFi network you created to share the internet and files between computers.

      At the moment, I am using Connectify to connect my desktop computer to the internet via my laptop's WiFi connection because my desktop PC doesn't have WiFi, nor do I have a LAN cable. This is only a temporary option for me thought.

  7. Ijtaba Alavi
    December 29, 2012 at 8:45 pm

    Or just goto network and sharing center and then click on Change Advanced Sharing Settings from the left pane
    then, explore all available options under:
    Private (Current profile), Guest or Public, All Networks,

    choose what to keep turn on and what to turn off
    and read the description of everything there
    you will not get any problem of this type in future :)
    else the simple answer is turn off Password Protected Sharing under "All Network" Section !

  8. Benoit Bourgeault
    December 29, 2012 at 8:40 pm

    You can use a "Homegroup", see the following:


  9. Ijtaba Alavi
    December 29, 2012 at 8:35 pm

    Having password is not only the way of protecting data over the network
    check if those computers have turned on file sharing on home group and turn on all media sharing too and do the same settigns for home and puclic networks
    then see.
    And if it still asks for the password than just put the username (name of that pc) in the username place and leave the password blank and press enter, you should get the access

  10. ha14
    December 29, 2012 at 7:09 am

    Control Panel - Network and Sharing Center - Change Advanced Sharing Settings
    Expand Home or Work
    Network Discovery ON
    File and printer sharing ON
    Public Folder Sharing ON
    Media Streaming Off
    Enable file sharing 40-56 encryption machines (if XP/2000 etc PCs in workgroup)
    Password Protected Sharing OFF

  11. Jan Fritsch
    December 29, 2012 at 1:43 am

    You will have to change the security options to allow file sharing without authentication.

    Or you simply input the account name and passwords of one of the users on the remote computer you are trying to access.

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