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one server keeps randomly losing connection with domain

Unanswered one server keeps randomly losing connection with domain

  • Friday, January 25, 2013 9:49 PM
     
     
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    Hi 

    i am suffering with one of our 50 servers , all servers , clients and sites are working just fine  

    all 5 Domain controllers are replicating up to date 

    this is server is one of SharePoint servers , Randomly the application team contact me about a problem with this  server    " usually it takes 1 to 3 days to get down again after restarting " 

    Its Virtual server . Other servers on same base Hyper-v server are OK 

    I can ping any PC on the domain by host name or by IP , also i can pin domainname.local 

    before i found 2 DNS record : IPv6 and 4 , iv disables ipv6 and 6to4 tunnel 

    also there was no site for the server sub-net so i configured the correct site sub-net  

    now i am getting GP update errors , and when i am trying to access any computer`s shared folder i am getting : " the name limit for the local computer network adapter card was exceeded " 

    the Netstat -n command shows only 3 time-wait connections 

    this server is configured for load balance with another server " which working fine " the load balance manager shows an error : the RPC server is unavailable ... 

    one more thing i just founded that on network and sharing center it shows " Network 3 " for network name instead of domainname.local as it should be 

    Please Please ... i need your help ! while it is corporate website server and it is  really a big problem for me . 

    note : sorry for bad grammar .  

     

     

     

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  • Saturday, January 26, 2013 5:31 AM
     
     
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    I would start by that;

    Error Message: The name limit for the local computer network adapter card was exceeded - http://support.microsoft.com/kb/319504/en-us

    ipconfig output ok for the DNS's entry ? (just a local DC's DNS)

    That subnet is not isolated ? (ie; talking to a DC is not limited)

    MCP | MCTS 70-236: Exchange Server 2007, Configuring

    Twitter - @yagmoth555 ()
    Blog: http://www.jabea.net | http://blogs.technet.com/b/wikininjas/

     
  • Saturday, January 26, 2013 5:57 AM
     
     
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    Please perform the clean boot and check the issue.

    http://support.microsoft.com/kb/929135?wa=wsignin1.0

    http://www.arabitpro.com

     
  • Sunday, January 27, 2013 12:21 AM
     
     
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    thanks a lot  Yagmoth555 

    The IPconfig output is OK ! yes only the two DNS servers i had configured 

    but it did not understand what do you mean by "talking to a DC is not limited" 

    When the issue happen , I cannot access any shared folder on any server and of course the SYSVOL and other domain folders :\  

    Windows IP Configuration

       Host Name . . . . . . . . . . . . : servername
       Primary Dns Suffix  . . . . . . . : domain name.local
       Node Type . . . . . . . . . . . . : Hybrid
       IP Routing Enabled. . . . . . . . : No
       WINS Proxy Enabled. . . . . . . . : No
       DNS Suffix Search List. . . . . . : domain name.local

    Ethernet adapter Local Area Connection:

       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Virtu
    pter
       Physical Address. . . . . . . . . : 
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
       IPv4 Address. . . . . . . . . . . : 192.1.1.129(Pre
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       IPv4 Address. . . . . . . . . . . : 192.1.1.130(Pre
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       Default Gateway . . . . . . . . . : 192.1.1.254
       DNS Servers . . . . . . . . . . . : 10.0.0.50
                                           10.0.0.52
       NetBIOS over Tcpip. . . . . . . . : Enabled

    any ideas ? 

     
  • Sunday, January 27, 2013 12:23 AM
     
     
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    thnx Syed , I dont think i can test the server without its all services 

    I think it is better to T Shoot the server a live . 

    any suggestions ?  

     
  • Tuesday, February 05, 2013 1:58 PM
     
     
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    By talking to the DC, I mean all dynamic RPC port must be open, thus can be 1024 to 65535. Sometime VLAN are restricted by ports between them.

    MCP | MCTS 70-236: Exchange Server 2007, Configuring

    Twitter - @yagmoth555 ()
    Blog: http://www.jabea.net | http://blogs.technet.com/b/wikininjas/

     
  • Tuesday, February 05, 2013 2:10 PM
     
     
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    Hello,

    How many virtual NIC's on this server? More than one?If yes, make sure only one of them ha a default gateway set. No multi-homing.

    Miguel Fra | Falcon IT Services, Miami, FL
    www.falconitservices.com | www.falconits.com | Blog