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Sharing Network Drives

Discussion in 'Networking' started by allenkc, Oct 11, 2008.

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  1. allenkc

    allenkc Thread Starter

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    Desktop A wired-sharing "D" and "E" drive (THEDELL)
    Desktop B wireless-sharing "D" drive (THEHP)
    Laptop wireless (COMPAQ)

    All connected by Linksys WRT54GC.
    All firewalls disabled on PC's-firewall enabled on router
    All in workgroup called "MSHOME"
    All running up to date "Avast" antivirus
    All running remote access program called RealVNC
    All can reach internet with no problems
    All have Enable NetBIOS over TCP/IP turned on
    All running Windows XP Home

    Here is the problem, workgroup MSHOME cannot be found on laptop after booting from cold start or standby(therefore Desktop A shared drives cannot be accessed).

    If I ping desktop A with the laptop, with the computer name(THEDELL), it cannot be found.
    If I ping desktop A with the IP address, it is found. Then re-pinging the name will work.

    OR

    If I use RealVNC to access desktop A from the laptop(just open up the access window then close it), then I can access the shared drives.

    After successful pinging or using RealVNC, shared drives on Desktop A can be accessed.

    After a period of time (undetermined), the shared drive access goes away and I have to do one of the two processes to access the shared drives again. Rebooting does not help!!

    Please keep in mind that "The Dell" and "The HP" do not have any problems communicating.

    Does anyone have any idea what could be causing this? Thanks for your time.
     
  2. TerryNet

    TerryNet Moderator

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    On the laptop ... the Computer Browser service is the one of most interest I think ...

    Make sure the following services are running (Control Panel - Administrative Tools - Services). The Startup Type on my machine is 'Automatic' except for the one indicated.

    Computer Browser
    DHCP Client
    DNS Client
    Network Location Awareness (Startup Type 'Manual')
    Remote Procedure Call (RPC)
    Server
    TCP/IP NetBIOS Helper
    Workstation
     
  3. avisitor

    avisitor

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    Sounds like it could be a DNS issue. Let's see an ipconfig /all from each computer as well as a nbtstat -n
     
  4. allenkc

    allenkc Thread Starter

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    Terrynet,

    Thanks for the reply. All those services are running on all three PCs.


    avisitor,

    Thanks for your reply as well. I have done an ipconfig and nbtstat on the laptop. I can tell you that both The Dell and The HP came back with the same info.

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Compaq
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Wireless Card:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) PRO/Wireless 2200BG Network
    Connection
    Physical Address. . . . . . . . . : 00-15-00-35-B8-2D
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.1.4
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 208.67.220.220
    208.67.222.222


    Wireless Card:
    Node IpAddress: [192.168.1.4] Scope Id: []

    NetBIOS Local Name Table

    Name Type Status
    ---------------------------------------------
    COMPAQ <00> UNIQUE Registered
    COMPAQ <20> UNIQUE Registered
    MSHOME <00> GROUP Registered
    MSHOME <1E> GROUP Registered
    MSHOME <1D> UNIQUE Registered
    ..__MSBROWSE__.<01> GROUP Registered


    Thanks again for your help.
     
  5. avisitor

    avisitor

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    Could you please post them from the other computers as well. There's some little differences that we're looking for. If they're identical, we have a problem.

    However, more likely than not, the problem is that you're using OpenDNS. I'd suggest setting that at the router level, not at the computer level. If each computer is configured for OpenDNS, it might work, but it's less likely than if the router is configured for OpenDNS and the computers point to the router.
     
  6. allenkc

    allenkc Thread Starter

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    avisitor,

    I will post the info you asked for when I get home from work tonight.

    I wasn't aware that the DNS settings for the NIC would effect the connections to shared drives and the behavior on the LAN. I do have all the PCs set for OpenDNS. There have been issues in the past with my ISPs DNS servers.
     
  7. TerryNet

    TerryNet Moderator

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    I don't often get a chance to disagree with Austin, so I'll jump on this chance. :) I think the DNS servers have nothing to do with this, and suggest making no changes to them until and unless we run out of other ideas.

    I do agree about wanting to see the nbtstat -n and ipconfig /all for the other machines.

    On the laptop is the Startup Type of the Computer Browser service 'Automatic'? I'm just wondering if maybe it is 'Manual,' and doesn't start until you do the ping.
     
  8. avisitor

    avisitor

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    He says that pinging the other machines by name failed which indicates a name resolution issue.

    However, you do have a good point there. I believe that the query is made via NetBIOS/Computer Browser if it's not a FQDN. It'd be interesting to see if it works successfully with NetBIOS turned off. It's not really needed if you only have PCs running Win 2k or newer.

    When you have the computer freshly started, I'd like you to post the results of nslookup thedell

    This should give us a further idea of the problem
     
  9. allenkc

    allenkc Thread Starter

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    Well fellows, here you go. The ipconfig and the nbtstat for the other two PCs plus the nslookup on the dell. Let me know if you see anything wrong.

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.

    C:\Documents and Settings\Allen>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : TheDell
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Cont
    roller
    Physical Address. . . . . . . . . : 00-12-3F-6C-1E-98
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.1.2
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 208.67.222.222
    208.67.220.220

    C:\Documents and Settings\Allen>nbtstat -n

    Local Area Connection:
    Node IpAddress: [192.168.1.2] Scope Id: []

    NetBIOS Local Name Table

    Name Type Status
    ---------------------------------------------
    THEDELL <00> UNIQUE Registered
    MSHOME <00> GROUP Registered
    THEDELL <20> UNIQUE Registered
    MSHOME <1E> GROUP Registered
    MSHOME <1D> UNIQUE Registered
    ..__MSBROWSE__.<01> GROUP Registered


    C:\WINDOWS\SYSTEM32>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : THEHP
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Belkin 802.11g Network Adapter #2
    Physical Address. . . . . . . . . : 00-11-50-11-EB-10
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.1.3
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 208.67.222.222
    208.67.220.220

    C:\WINDOWS\SYSTEM32>nbtstat -n

    Wireless Network Connection:
    Node IpAddress: [192.168.1.3] Scope Id: []

    NetBIOS Local Name Table

    Name Type Status
    ---------------------------------------------
    THEHP <00> UNIQUE Registered
    THEHP <20> UNIQUE Registered
    MSHOME <00> GROUP Registered
    MSHOME <1E> GROUP Registered

    C:\WINDOWS\SYSTEM32>

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.

    C:\Documents and Settings\Allen>nslookup thedell
    Server: resolver1.opendns.com
    Address: 208.67.222.222

    Non-authoritative answer:
    Name: thedell
    Address: 208.69.32.132


    C:\Documents and Settings\Allen>

    Oddly enough, I have never seen that "NON AUTHORITATIVE" answer IP address before.
     
  10. avisitor

    avisitor

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    Well, there is a conflict between thedell and compaq over who is the master browser. That's usually firewall related. However, there is a DNS issue in that the names don't properly resolve as shown by the nslookup. That's why you can't ping or connect by name.
     
  11. allenkc

    allenkc Thread Starter

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    So do you have a suggestion on how I can fix this?
     
  12. TerryNet

    TerryNet Moderator

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    Not knowing what may have occurred on your network it is possibly normal that one machine was Master Browser the night of Oct. 12 and a different machine was Master last night. Do the nbtstat -n on all three PCs at roughly the same time. If more than one shows "..__MSBROWSE__.<01> GROUP Registered" it is as avisitor stated.

    It is an indication that the conflicting machines are not "seeing" each other, and that is normally caused by a firewall. What non-Windows firewall(s) do you have on the conflicting machines?
     
  13. allenkc

    allenkc Thread Starter

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    Terrynet,

    Thanks for the help on this.

    The only firewall that is running is on my router. I do not have any software firewalls running.

    Should the "browser" service only be running on 1 of my PCs, like the Dell?
     
  14. TerryNet

    TerryNet Moderator

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    Some people "play" with the Computer Browser service to force one to always be the Master or stop it on one or more machines. There may be some advantages to that, but it is definitely not necessary. Unless you understand more about it than I do, I recommend having it running on all machines with Startup Type 'Automatic.'

    In non-technical language the computers caucus and select a Master. The Master then collects the network information (who's on the network and what are their shares) and about every 15 or 20 minutes telegraphs that info to the others. The "losers" go back to their home machines and sulk while waiting for the notices. If the Master has to go to the restroom or otherwise leaves the network the others select a new Master.

    The "every 15 or 20 minutes" means there can be, and are, times when one or more machines do not have current information. Any problem with ping by name or with file sharing in the first 15 minutes or so of a network change (any computer leaving or joining the network, including a reboot) may be because of this delay. If I'm in a hurry I use IP address. But names should always be working after 20 minutes and usually much, much sooner.
     
  15. allenkc

    allenkc Thread Starter

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    HAHAHAHA!!! I like your explantion.

    I will keep the browser service running on all PCs.
    Other than a firewall, could anything else be causing this "master browser" conflict or the DNS name being recognized?
     
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