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Windows 7 Thread, Really odd network (?DNS) issue that's confused me... in Technical; ... but it is Friday so that sometimes doesn't take much! I've got two Win7 teacher laptops with the same ...
  1. #1
    BatchFile's Avatar
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    Really odd network (?DNS) issue that's confused me...

    ... but it is Friday so that sometimes doesn't take much!

    I've got two Win7 teacher laptops with the same bizzare problem.

    When accessing one particular server (PDC, also hosts most of the printers, Running Server 2003), for examply by typing \\servername in the run box, they fail with "the network name is no longer available". However, they can resolve the server name to the correct ip to ping and can access all the resources by ip address (eg \\10.xxx.xxx.xxx\printername). These two observations, together with the fact that only these two laptops are affected, are really confusing me!
    If it was DNS everyone would be affected, they can resolve the address ok (for a ping) and can access the resources by the IP but not via the name. They can also see all the other servers normally so the networking seems ok???

    Incidentally both have up to date and working Sophos AV... I only mention this as I'm beginning to suspect foul play...?

    I've tried:
    ipconfig /flushdns
    adding the server to the hosts file
    adding the server to the lmhosts.sam file

    Anyone got any better ideas before I reimage them both?!
    Last edited by BatchFile; 10th January 2014 at 12:12 PM.

  2. #2
    ninjabeaver's Avatar
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    Have your turned IPV6 off on the Win7 Clients? I sure that was what I had with a similar issue here on a few PC's.

  3. Thanks to ninjabeaver from:

    BatchFile (10th January 2014)

  4. #3
    BatchFile's Avatar
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    I'll have a look... I usually do...

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    +1 on the IPV6

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    BatchFile's Avatar
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    It wasn't, but that hasn't fixed the issue :-(

  7. #6

    twin--turbo's Avatar
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    Have you confirmed the DNS settings and done an NSLOOKUP

    have you tried by \\server.domain\

    also look in the Advanced section of the TCP/IP V4 at the DNS page and confirm that only these options are set

    Append Primary and coonection specific DNS suffixes
    Append parent suffixes........
    Register thsi conn........


    Rob

  8. Thanks to twin--turbo from:

    BatchFile (10th January 2014)

  9. #7
    BatchFile's Avatar
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    Curioser and curioser...

    \\server.domain works.

    NSlookup looks ok too
    DNS looks as I'd expect
    and the advanced Tcp/Ip stuff is as @twin-turbo said it should be, too.

    Wosnext?!

  10. #8

    twin--turbo's Avatar
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    ipconfig /flushdns

    are you trying from explorer or iexplore

  11. #9
    BatchFile's Avatar
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    tried ipconfig /flushdns already (several times )

    I'm trying from a run box, so explorer. Also, MS Word crashes when trying to print to a printer connected by server name, ok when printer connected to the same server by ip address.
    Last edited by BatchFile; 10th January 2014 at 01:53 PM.

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    ipconfig /all

    whats the "primary DNS Suffix" and "DNS Suffix Search Lsit".


    and "Connection-Specific Suffix" for the adapter in use?

    Rob

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    Restart the DNS Server service on both servers in turn

  14. #12
    BatchFile's Avatar
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    Can't see anything there either This is my PC that works fine:

    Code:
      Host Name . . . . . . . . . . . . : TheDarkLord
      Primary Dns Suffix  . . . . . . . : cps.local
      Node Type . . . . . . . . . . . . : Hybrid
      IP Routing Enabled. . . . . . . . : No
      WINS Proxy Enabled. . . . . . . . : No
      DNS Suffix Search List. . . . . . : cps.local
    
    thernet adapter Local Area Connection:
    
      Connection-specific DNS Suffix  . :
      Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
      Physical Address. . . . . . . . . : 00-19-66-CF-0E-29
      DHCP Enabled. . . . . . . . . . . : Yes
      Autoconfiguration Enabled . . . . : Yes
      IPv4 Address. . . . . . . . . . . : 10.105.18.4(Preferred)
      Subnet Mask . . . . . . . . . . . : 255.255.252.0
      Lease Obtained. . . . . . . . . . : 02 January 2014 12:46:06
      Lease Expires . . . . . . . . . . : 13 January 2014 12:53:52
      Default Gateway . . . . . . . . . : 10.105.16.1
      DHCP Server . . . . . . . . . . . : 10.105.16.9
      DNS Servers . . . . . . . . . . . : 10.105.16.10
                                          10.105.16.9
      NetBIOS over Tcpip. . . . . . . . : Enabled
    One of the problem laptops:
    Code:
    Windows IP Configuration
    
       Host Name . . . . . . . . . . . . : laptop13_agc
       Primary Dns Suffix  . . . . . . . : cps.local
       Node Type . . . . . . . . . . . . : Hybrid
       IP Routing Enabled. . . . . . . . : No
       WINS Proxy Enabled. . . . . . . . : No
       DNS Suffix Search List. . . . . . : cps.local
    
    Wireless LAN adapter Wireless Network Connection 3:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
    2
       Physical Address. . . . . . . . . : B8-03-05-8C-34-45
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Ethernet adapter Bluetooth Network Connection:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
       Physical Address. . . . . . . . . : B8-03-05-8C-34-48
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Wireless LAN adapter Wireless Network Connection 2:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
       Physical Address. . . . . . . . . : B8-03-05-8C-34-45
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Wireless LAN adapter Wireless Network Connection:
    
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 130
       Physical Address. . . . . . . . . : B8-03-05-8C-34-44
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       IPv4 Address. . . . . . . . . . . : 10.105.19.193(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.252.0
       Lease Obtained. . . . . . . . . . : 10 January 2014 13:11:03
       Lease Expires . . . . . . . . . . : 11 January 2014 14:05:00
       Default Gateway . . . . . . . . . : 10.105.16.1
       DHCP Server . . . . . . . . . . . : 10.105.19.248
       DNS Servers . . . . . . . . . . . : 10.105.16.10
                                           10.105.16.9
       NetBIOS over Tcpip. . . . . . . . : Enabled
    
    Ethernet adapter Local Area Connection:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
       Physical Address. . . . . . . . . : E8-03-9A-A5-84-A9
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{2317D672-7B90-4D14-AD02-E8AD615B947B}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{38A63E2A-0709-4841-BFA4-1711FF841D52}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter Local Area Connection* 14:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{B7CE4BFF-62C3-4394-9044-C9D4E1B802E5}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{018C2F61-62CF-4B04-A15B-B1A342566C12}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{DAD83847-80DB-45D1-B05C-635F199CF0CD}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    C:\Users\a.g.coulston>ipconfig /all
    
    Windows IP Configuration
    
       Host Name . . . . . . . . . . . . : laptop13_agc
       Primary Dns Suffix  . . . . . . . : cps.local
       Node Type . . . . . . . . . . . . : Hybrid
       IP Routing Enabled. . . . . . . . : No
       WINS Proxy Enabled. . . . . . . . : No
       DNS Suffix Search List. . . . . . : cps.local
    
    Wireless LAN adapter Wireless Network Connection 3:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
    2
       Physical Address. . . . . . . . . : B8-03-05-8C-34-45
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Ethernet adapter Bluetooth Network Connection:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
       Physical Address. . . . . . . . . : B8-03-05-8C-34-48
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Wireless LAN adapter Wireless Network Connection 2:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
       Physical Address. . . . . . . . . : B8-03-05-8C-34-45
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
    
    Wireless LAN adapter Wireless Network Connection:
    
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 130
       Physical Address. . . . . . . . . : B8-03-05-8C-34-44
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       IPv4 Address. . . . . . . . . . . : 10.105.19.193(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.252.0
       Lease Obtained. . . . . . . . . . : 10 January 2014 13:11:03
       Lease Expires . . . . . . . . . . : 11 January 2014 14:07:29
       Default Gateway . . . . . . . . . : 10.105.16.1
       DHCP Server . . . . . . . . . . . : 10.105.19.248
       DNS Servers . . . . . . . . . . . : 10.105.16.10
                                           10.105.16.9
       NetBIOS over Tcpip. . . . . . . . : Enabled
    
    Ethernet adapter Local Area Connection:
    
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
       Physical Address. . . . . . . . . : E8-03-9A-A5-84-A9
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       IPv4 Address. . . . . . . . . . . : 10.105.19.246(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.252.0
       Lease Obtained. . . . . . . . . . : 10 January 2014 14:07:28
       Lease Expires . . . . . . . . . . : 11 January 2014 14:07:28
       Default Gateway . . . . . . . . . : 10.105.16.1
       DHCP Server . . . . . . . . . . . : 10.105.19.248
       DNS Servers . . . . . . . . . . . : 10.105.16.10
                                           10.105.16.9
       NetBIOS over Tcpip. . . . . . . . : Enabled
    
    Tunnel adapter isatap.{2317D672-7B90-4D14-AD02-E8AD615B947B}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{38A63E2A-0709-4841-BFA4-1711FF841D52}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter Local Area Connection* 14:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{B7CE4BFF-62C3-4394-9044-C9D4E1B802E5}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{018C2F61-62CF-4B04-A15B-B1A342566C12}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    
    Tunnel adapter isatap.{DAD83847-80DB-45D1-B05C-635F199CF0CD}:
    
       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
    I've tried it on WiFi, cabled and both. Same result each time!

  15. #13
    BatchFile's Avatar
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    Quote Originally Posted by Michael View Post
    Restart the DNS Server service on both servers in turn
    What, Now?!
    Oh well, I suppose they'll fail over to each other won't they...

  16. #14
    BatchFile's Avatar
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    Quote Originally Posted by BatchFile View Post
    What, Now?!
    Oh well, I suppose they'll fail over to each other won't they...
    Quicker than I thought it'd be but no difference, even after another /flushdns

  17. #15
    ijk
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    Are there any network related errors in the laptop's logs?
    Are the laptop NIC drivers up to date?

    This echoes something we came across a while back, but it was in response to NETLOGON errors in the logs. We went down the switch off IP6 route, but that was a red herring. I think it might have been a timing issue between workstation and server.

    Hope that helps, sorry it's vague.

    Nic

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