Two computers on network cannot communicate

I have two servers on the network. Each server can see all the other servers and computers except for each other. Server1 is a SQL Server, Server2 is a Backup server(for running backups). Both computers can see all of the rest of the network just great, except each other.

On Server1 if I try to access Server2 i get this message:


"\\Server2 is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.

The semaphore timeout period has expired."

On server2 if i try to access server1 i get this message:

"\\Server1 is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.

The specified network name is no longer available"

I have tried everthing I can think of to fix this issue, all help is greatly appreciated.
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rkelley534Asked:
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pseudocyberCommented:
Have you taken a look at this?

Access Denied Error When Attempting to Connect to a Network Share
http://support.microsoft.com/default.aspx?kbid=214759
SYMPTOMS
When you attempt to connect to a network share, you may receive the following error message:
\\Servername\share is not accessible.
Access Denied
If you are accessing a share in another domain, this message may appear even though you have verified that the trust is configured correctly. Also, the share may be visible in Network Neighborhood.
CAUSE
This problem can occur when the share permissions are set correctly but the NTFS partition permissions granting access to individual folders or files have not been properly assigned. This problem can also occur when the reverse is true.
RESOLUTION
This issue may be resolved by verifying that both the share permissions and the NTFS partition permissions are correctly configured for individual user or group access.
rkelley534Author Commented:
Tried this fix and it did not work. btw these are both Windows Server 2003 SP1 boxes.

Thanks,

Ryan
cwwkieCommented:
can you ping server1 from server2?

Exactly how do you try to access the other server?

Can other computers on the network not only see both servers, but also access both servers?
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rkelley534Author Commented:
I can ping both servers from each other.

I am trying to access by going into Network Places and by typing \\Server1 or \\server2

All other computers can see both servers and access both servers

Thanks, Ryan
cwwkieCommented:
I know two things you can try to locate the problem;

1. type \\ip-address to access the other server

2. enter in a command promt: net use \\server1 /user:username password
(try this twice with two different usernames)
rkelley534Author Commented:
If i type in \\ip-address i can see the shares on the server but cannot access them.

When i type in the command line command it just hangs

Any more ideas?
jdraggiCommented:
You are not running two microsoft Small Biz Servers are you?  If so SBS is not designed to talk to another SBS server on the same network and trust relationships are not allowed with SBS.

If you are not using SBS:
1) Are the servers on the same domain?  If not you will need to setup trust relationships.

You may have DNS issues/WINS issues... make sure that your WINS servers replicate with eachother.  Make sure that your servers are listed in the other DNS server...  With 2003 you should structure it so that all DNS goes to your master DNS server and that forwards all unknown DNS requests to the internet.

run netdiag /fix and dcdiag /fix from both of the servers to check for errors...  the tools are on the second CD under a folder called support.

I will need results/response before we go into this more.  Let me know what errors you get...

Hope this helps!
--John
rkelley534Author Commented:
I am not running SBS Both of these servers are Windows Server 2003 Enterprise.

I can resolve IP's/Names all day long from both of these servers

Results fro netdiag/fix from Server1:

************************************************************************
C:\Documents and Settings\Administrator>netdiag /fix

..........................................

    Computer Name: SCSQLSRV01
    DNS Host Name: scsqlsrv01.corp.sportchassis.com
    System info : Windows 2000 Server (Build 3790)
    Processor : x86 Family 6 Model 11 Stepping 1, GenuineIntel
    List of installed hotfixes :
        KB883939
        KB890046
        KB896358
        KB896422
        KB896428
        KB898715
        Q147222


Netcard queries test . . . . . . . : Passed



Per interface results:

    Adapter : Team #0 - Adaptive Load Balancing Mode

        Netcard queries test . . . : Passed

        Host Name. . . . . . . . . : scsqlsrv01
        IP Address . . . . . . . . : 10.160.208.22
        Subnet Mask. . . . . . . . : 255.0.0.0
        Default Gateway. . . . . . : 10.160.208.1
        Primary WINS Server. . . . : 10.160.208.15
        Dns Servers. . . . . . . . : 10.160.208.15


        AutoConfiguration results. . . . . . : Passed

        Default gateway test . . . : Passed

        NetBT name test. . . . . . : Passed

        WINS service test. . . . . : Passed

    Adapter : Local Area Connection

        Netcard queries test . . . : Passed

        Host Name. . . . . . . . . : scsqlsrv01.corp.sportchassis.com
        IP Address . . . . . . . . : 10.160.208.89
        Subnet Mask. . . . . . . . : 255.0.0.0
        Default Gateway. . . . . . : 10.160.208.1
        Primary WINS Server. . . . : 10.160.208.15
        Dns Servers. . . . . . . . : 10.160.208.15


        AutoConfiguration results. . . . . . : Passed

        Default gateway test . . . : Passed

        NetBT name test. . . . . . : Passed

        WINS service test. . . . . : Passed


Global results:


Domain membership test . . . . . . : Passed


NetBT transports test. . . . . . . : Passed
    List of NetBt transports currently configured:
        NetBT_Tcpip_{8394495C-FADB-44D9-828C-AC812C80E40A}
        NetBT_Tcpip_{7D9DC7FD-F013-418D-B388-863E37327FCA}
    2 NetBt transports currently configured.


Autonet address test . . . . . . . : Passed


IP loopback ping test. . . . . . . : Passed


Default gateway test . . . . . . . : Passed


NetBT name test. . . . . . . . . . : Passed


Winsock test . . . . . . . . . . . : Passed


DNS test . . . . . . . . . . . . . : Passed


Redir and Browser test . . . . . . : Passed
    List of NetBt transports currently bound to the Redir
        NetBT_Tcpip_{8394495C-FADB-44D9-828C-AC812C80E40A}
        NetBT_Tcpip_{7D9DC7FD-F013-418D-B388-863E37327FCA}
    The redir is bound to 2 NetBt transports.

    List of NetBt transports currently bound to the browser
        NetBT_Tcpip_{8394495C-FADB-44D9-828C-AC812C80E40A}
        NetBT_Tcpip_{7D9DC7FD-F013-418D-B388-863E37327FCA}
    The browser is bound to 2 NetBt transports.


DC discovery test. . . . . . . . . : Passed


DC list test . . . . . . . . . . . : Passed


Trust relationship test. . . . . . : Passed
    Secure channel for domain 'SMC' is to '\\scfilesrv01.corp.sportchassis.com'.



Kerberos test. . . . . . . . . . . : Passed


LDAP test. . . . . . . . . . . . . : Passed


Bindings test. . . . . . . . . . . : Passed


WAN configuration test . . . . . . : Skipped
    No active remote access connections.


Modem diagnostics test . . . . . . : Passed

IP Security test . . . . . . . . . : Skipped

    Note: run "netsh ipsec dynamic show /?" for more detailed information


The command completed successfully

C:\Documents and Settings\Administrator>

**************************************************************************
Results of dcdiag /fix from server1:


C:\Documents and Settings\Administrator>dcdiag /fix

Domain Controller Diagnosis

Performing initial setup:
   ***Error: scsqlsrv01 is not a DC.  Must specify /s:<Domain Controller> or
   /n:<Naming Context> or nothing to use the local machine.


********************************************************************
Results of netdiag /fix from Server2:

C:\Documents and Settings\Administrator.SMC>netdiag /fix

.....................................

    Computer Name: SCBKPSRV01
    DNS Host Name: scbkpsrv01.corp.sportchassis.com
    System info : Windows 2000 Server (Build 3790)
    Processor : x86 Family 15 Model 4 Stepping 1, GenuineIntel
    List of installed hotfixes :
        KB898715
        Q147222


Netcard queries test . . . . . . . : Passed



Per interface results:

    Adapter : Team #0 - Static Link Aggregation Mode

        Netcard queries test . . . : Passed

        Host Name. . . . . . . . . : scbkpsrv01
        IP Address . . . . . . . . : 10.160.208.18
        Subnet Mask. . . . . . . . : 255.0.0.0
        Default Gateway. . . . . . : 10.160.208.1
        Primary WINS Server. . . . : 10.160.208.15
        Dns Servers. . . . . . . . : 10.160.208.15


        AutoConfiguration results. . . . . . : Passed

        Default gateway test . . . : Passed

        NetBT name test. . . . . . : Passed

        WINS service test. . . . . : Passed


Global results:


Domain membership test . . . . . . : Passed


NetBT transports test. . . . . . . : Passed
    List of NetBt transports currently configured:
        NetBT_Tcpip_{E4C40D54-A6B8-44D9-BA38-41FAAC176684}
    1 NetBt transport currently configured.


Autonet address test . . . . . . . : Passed


IP loopback ping test. . . . . . . : Passed


Default gateway test . . . . . . . : Passed


NetBT name test. . . . . . . . . . : Passed


Winsock test . . . . . . . . . . . : Passed


DNS test . . . . . . . . . . . . . : Passed


Redir and Browser test . . . . . . : Passed
    List of NetBt transports currently bound to the Redir
        NetBT_Tcpip_{E4C40D54-A6B8-44D9-BA38-41FAAC176684}
    The redir is bound to 1 NetBt transport.

    List of NetBt transports currently bound to the browser
        NetBT_Tcpip_{E4C40D54-A6B8-44D9-BA38-41FAAC176684}
    The browser is bound to 1 NetBt transport.


DC discovery test. . . . . . . . . : Passed


DC list test . . . . . . . . . . . : Passed


Trust relationship test. . . . . . : Passed
    Secure channel for domain 'SMC' is to '\\scfilesrv01.corp.sportchassis.com'.



Kerberos test. . . . . . . . . . . : Passed


LDAP test. . . . . . . . . . . . . : Passed


Bindings test. . . . . . . . . . . : Passed


WAN configuration test . . . . . . : Skipped
    No active remote access connections.


Modem diagnostics test . . . . . . : Passed

IP Security test . . . . . . . . . : Skipped

    Note: run "netsh ipsec dynamic show /?" for more detailed information


The command completed successfully

*******************************************************************
Results of dcdiag /fix from Server2:

C:\Documents and Settings\Administrator.SMC>dcdiag /fix

Domain Controller Diagnosis

Performing initial setup:
   ***Error: scbkpsrv01 is not a DC.  Must specify /s:<Domain Controller> or
   /n:<Naming Context> or nothing to use the local machine.
jdraggiCommented:
1) why is your subnet so big?
2) multihomed servers sometimes cause a problem...  Do you have load balancing setup correctly?  If not this could be your problem
3) is DNS server 10.160.208.15 an active directory server?
4) does the DNS server and WINS server 10.160.208.15 show the correct IP addresses for your other two servers?
5) the IP from your multihomed server that you want to resolve is going to be the network card that has your microsoft network bound to it...  
6) make sure that you have the proper binding order  network control panel, advanced network settings... bind the primary NIC 1st and the 2nd NIC second.

dcdiag /fix failed because these must be member servers and not domain controller computers.

--John

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rkelley534Author Commented:
1) The subnet has always been 255.0.0.0
2) I have tried the setup has Static Link Aggregation as well, It is not windows NLB it is through the Intel Adapter
3) Yes DNS Server is an Active Directory Server
4) Yes the DNS and WINS Servers show the correct IP address for the two servers
5) This is the case - There is only one real network connection on the Server and it has the correct IP Address
6) I am not sure if this is relevant to my setup or not - Could not find the binding configuration

Thanks,

Ryan
rkelley534Author Commented:
I had something else that I just changed too:

I have two network Cards - One onboard and one dual port Gigabit Card.

I just disabled the onboard card and i am rebooting and will test again.
jdraggiCommented:
yes, please disable all network cards other than the one you are using...

once we get it working then we can add them back into the picutre.... multiple network cards have to be bound the right way... and #6 would apply then.

--John
rkelley534Author Commented:
I got it fixed. I had Jumbo Frames turned on in the Network Team Settings. I disabled this and then it worked. Jumbo Frames was turned off on the switch so it did not know what it was doing.
jdraggiCommented:
Cool!

--John
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