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Limited Connectivity/Unidentified Network

    Question

  • Hello there.....

    I have 2 desktop computers connected to a router. Or am TRYING to connect them to the router. I can connect one computer at a time, but not both, which is absurd because routers are supposed to let you connect more than one, obviously. I know all of the ports work because I've used them all one at a time. I connect through a cable and not through wireless. When I try to plug 2 computers in, it gives me the Unidentified Network on one of the computers and says "Home doesn't have a valid IP address." Why is it doing this to me? I've connected my computer to the same router at someone else's house with no problem whatsoever. Is it the router itself or is it my computer? I have spent hours trying to fix this but to no avail and I am ready to pull my hair out. One computer has Windows 7 and the other has Vista. I tried to look for that Bonjour ## Id.## thingy or whatever it was and I don't have it in there. Someone please help! All I want to do is make it so both computers can be online at the same time!!
    Friday, December 25, 2009 5:31 PM

Answers

  • this might be overkill for you, but it'll be a good review just in case

    If you have a home network and are running Windows 7/Vista and have XP on other PC(s) you might want to share files between them.  Today we will look at the steps to share files and hardware devices like a printer.

    Sharing Files In Windows 7/Vista and XP

    Sharing folders between two Windows 7 machines with the new HomeGroup feature is an easy process, but the HomeGroup feature is not compatible with Vista or XP.  For this tutorial we are using Windows 7 x64 RC1 and XP Professional SP3 connected through a basic Linksys home wireless router. 

    First make sure both machines are members of the same Workgroup which by default is named Workgroup.

    workgroup  

    On the Windows 7 machine go into Control Panel \ All Control Panel Items \ Network and Sharing Center then click on Change advanced sharing settings.

    network and sharing  

    advanced

    You will want to verify the following settings under Advanced Sharing Settings for the Home or Work and Public profile.

    home or work settings

    If you want any user to have access the public shares turn off password protection.  This is located in Advanced Sharing Settings toward the bottom of the list. 

     turn off pw

    If you want to keep it enabled make sure there is a log in account for the other XP machines and they have a password.

    create pw

    Now if you go into Network in Windows 7 you should see your XP machine and the Windows 7 as well which in this case is Mysticgeek-PC.

    Explorer

    To share the printer on the Windows 7 machine go into Devices and Printers from the Start menu and double click on the printer icon.

    devices

    Next double click on "Customize your printer".

    1 Printer

    In the Properties screen click on the Sharing Tab and check the box to share the printer and type in its share name.

    2 printer share

    If your XP machine is an x86 OS you can install Additional Drivers before setting up the XP machine.

    3 Printer add drivers  

    To find the shared folders and devices double click on the Windows 7 machine icon under Network.  Here you can see the printer connected to my Windows 7 machine is shared and also the Users Folder.

    shared device and users

    Continue into the Users folder and Public to see the shared folders, here I also created a folder called XP Share just to keep everything in central location.

    xpshare

    Over on your XP machine open up My Network Places to find the Windows 7 (mysticgeek-pc) shared folder.

    My Network Places

    Double click on the Share folder to find a list of shared folders in the Public folder on Windows 7.  If you have password protection enabled you will need to type in the username and password of the user account on the Windows 7 machine first. 

    folders

    Setup XP With Shared Printer

    To set up the shared printer in XP you will need to go into Printers and Faxes from the Start menu and kick off the Add Printer Wizard.

    add Printer

    Now select "A network printer, or a printer attached to another computer" then hit Next.

    network option

    Next select "Connect to this printer…" and type in the path for the printer connected to the Windows 7 machine and click next.  

    print

    Now click Yes to the confirmation message.

    confirm msg

    Then click Finish the printer to install and complete the Wizard.

    Complete

    In some cases you will need to install the x86 XP drivers for the shared printer because the Windows 7 drivers are not compatible with XP.  When everything is installed open up Printers and Faxes to find the shared printer.

    in explorer

    This should help you get started with sharing your files and other devices with your Windows 7 machine.  When I first started I was able to see the printer on XP right away because I had a HomeGroup set up, but once I deleted it I needed to share the printer like you would for a workgroup.  You might also have to do a couple restarts of the XP machine for it to see the shared resources on Windows 7. 


    MCSE, MCSA, MCDST [If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.]
    • Marked as answer by Novak Wu Monday, January 04, 2010 6:18 AM
    Sunday, December 27, 2009 3:13 PM
  •  

    In addition, you can also try the following steps.

     

    1. Temporarily turn off firewall on each machine for a test.

     

    2. Upgrade the router firmware. In possible, please change another router to check the result.

     

    3. Restart the computer to Safe Mode with Networking to check the result.

     

    4. Configure the connection to obtain an IP address automatically

    =======================================

    a. Click "Start", input "NCPA.CPL" (without quotation marks) to Start Search bar and press "Enter".

    b. Right-click the network connection and click "Properties".

     

    If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

     

    c. Click to highlight "Internet Protocol Version 6 (TCP/IPv6)" and click "Properties".

    d. Check "Obtain an IP address automatically" and "Obtain DNS server address automatically".

    e. Click "OK".

    f. Click to highlight "Internet Protocol Version 4 (TCP/IPv4)" and click "Properties".

    g. Check "Obtain an IP address automatically" and "Obtain DNS server address automatically".

    h. Click "OK".

    i. Reboot the computer.

     

    Hope these help to you.

     

    Thanks,

    Novak

     

    • Marked as answer by Novak Wu Monday, January 04, 2010 6:18 AM
    Monday, December 28, 2009 6:19 AM

All replies

  • Gnawty, Let's go through some steps to first insure that things are set to work.   Open the setup utility for your router.  Set the number of computers that you want to allow to use the router.  You can also set the starting IP address, But this probably is not necessary.  Logout  or close your utility making sure that things were saved prior to closing it. 

    Power down( turn off power to you unit)(Not just turn off if it is a desktop)  your computers.  Unplug the power to your router and wait about 20 seconds.  Make sure that both of your computers are connected to your router.  Plug the power back into your router.  Apply power back to one of your computers and then turn it on.  Apply power back to the other computer and now turn it on.

    A couple other things:  Make sure that you computer names are not the same.  This will cause an IP conflict. And make sure that your workgroup is the same if you are wanting to share.  You will want to setup your Windows 7 "Network and Sharing Center" as a "Work Network".  For "Home Network" to work both units have to be running Windows 7.  Also remember that in Windows 7 the drive that has the operating system will not be shared.  Public folders are used here.  But it still can be done if needed.  That will be for another day.

    This should get the router going.  Hope this helps.

    JB
    Saturday, December 26, 2009 9:30 AM
  • this might be overkill for you, but it'll be a good review just in case

    If you have a home network and are running Windows 7/Vista and have XP on other PC(s) you might want to share files between them.  Today we will look at the steps to share files and hardware devices like a printer.

    Sharing Files In Windows 7/Vista and XP

    Sharing folders between two Windows 7 machines with the new HomeGroup feature is an easy process, but the HomeGroup feature is not compatible with Vista or XP.  For this tutorial we are using Windows 7 x64 RC1 and XP Professional SP3 connected through a basic Linksys home wireless router. 

    First make sure both machines are members of the same Workgroup which by default is named Workgroup.

    workgroup  

    On the Windows 7 machine go into Control Panel \ All Control Panel Items \ Network and Sharing Center then click on Change advanced sharing settings.

    network and sharing  

    advanced

    You will want to verify the following settings under Advanced Sharing Settings for the Home or Work and Public profile.

    home or work settings

    If you want any user to have access the public shares turn off password protection.  This is located in Advanced Sharing Settings toward the bottom of the list. 

     turn off pw

    If you want to keep it enabled make sure there is a log in account for the other XP machines and they have a password.

    create pw

    Now if you go into Network in Windows 7 you should see your XP machine and the Windows 7 as well which in this case is Mysticgeek-PC.

    Explorer

    To share the printer on the Windows 7 machine go into Devices and Printers from the Start menu and double click on the printer icon.

    devices

    Next double click on "Customize your printer".

    1 Printer

    In the Properties screen click on the Sharing Tab and check the box to share the printer and type in its share name.

    2 printer share

    If your XP machine is an x86 OS you can install Additional Drivers before setting up the XP machine.

    3 Printer add drivers  

    To find the shared folders and devices double click on the Windows 7 machine icon under Network.  Here you can see the printer connected to my Windows 7 machine is shared and also the Users Folder.

    shared device and users

    Continue into the Users folder and Public to see the shared folders, here I also created a folder called XP Share just to keep everything in central location.

    xpshare

    Over on your XP machine open up My Network Places to find the Windows 7 (mysticgeek-pc) shared folder.

    My Network Places

    Double click on the Share folder to find a list of shared folders in the Public folder on Windows 7.  If you have password protection enabled you will need to type in the username and password of the user account on the Windows 7 machine first. 

    folders

    Setup XP With Shared Printer

    To set up the shared printer in XP you will need to go into Printers and Faxes from the Start menu and kick off the Add Printer Wizard.

    add Printer

    Now select "A network printer, or a printer attached to another computer" then hit Next.

    network option

    Next select "Connect to this printer…" and type in the path for the printer connected to the Windows 7 machine and click next.  

    print

    Now click Yes to the confirmation message.

    confirm msg

    Then click Finish the printer to install and complete the Wizard.

    Complete

    In some cases you will need to install the x86 XP drivers for the shared printer because the Windows 7 drivers are not compatible with XP.  When everything is installed open up Printers and Faxes to find the shared printer.

    in explorer

    This should help you get started with sharing your files and other devices with your Windows 7 machine.  When I first started I was able to see the printer on XP right away because I had a HomeGroup set up, but once I deleted it I needed to share the printer like you would for a workgroup.  You might also have to do a couple restarts of the XP machine for it to see the shared resources on Windows 7. 


    MCSE, MCSA, MCDST [If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.]
    • Marked as answer by Novak Wu Monday, January 04, 2010 6:18 AM
    Sunday, December 27, 2009 3:13 PM
  •  

    In addition, you can also try the following steps.

     

    1. Temporarily turn off firewall on each machine for a test.

     

    2. Upgrade the router firmware. In possible, please change another router to check the result.

     

    3. Restart the computer to Safe Mode with Networking to check the result.

     

    4. Configure the connection to obtain an IP address automatically

    =======================================

    a. Click "Start", input "NCPA.CPL" (without quotation marks) to Start Search bar and press "Enter".

    b. Right-click the network connection and click "Properties".

     

    If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

     

    c. Click to highlight "Internet Protocol Version 6 (TCP/IPv6)" and click "Properties".

    d. Check "Obtain an IP address automatically" and "Obtain DNS server address automatically".

    e. Click "OK".

    f. Click to highlight "Internet Protocol Version 4 (TCP/IPv4)" and click "Properties".

    g. Check "Obtain an IP address automatically" and "Obtain DNS server address automatically".

    h. Click "OK".

    i. Reboot the computer.

     

    Hope these help to you.

     

    Thanks,

    Novak

     

    • Marked as answer by Novak Wu Monday, January 04, 2010 6:18 AM
    Monday, December 28, 2009 6:19 AM