SQL Server connection could not be established

  • MY PDC server (WIndows 2003)is also SQL server(2000)

    Till yesterday i was able to connect to the sql server thru enterprize mgr.

    today when i click on the sql server in the enterprize mgr in my machine i get the follwoing error...

    connection could not be established.

    Reason:cannot generate SSPI context

    Please verify SQL server is running and check your SQL server registration property and try again.

    SQL server is showing started (green arrow). checked in the services both server and agent services are running. No change in registration property.

    Application Event log of the SQL server is showing follwoing error...

    Event Type:Error

    Event Source:MSSQLSERVER

    Event Category:(2)

    Event ID:17055

    Date:07/07/2009

    Time:10:30:04 PM

    User:NT AUTHORITY\SYSTEM

    Computer:ANDH002

    Description:

    18210 :

    BackupVirtualDeviceSet::Initialize: Open failure on backup device '{3706E7A8-4791-4A87-8F76-E3029C2E0D3F}1'. Operating system error 0x80070005(error not found).

    For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

    Data:

    0000: 22 47 00 00 10 00 00 00 "G......

    0008: 08 00 00 00 41 00 4e 00 ....A.N.

    0010: 44 00 48 00 30 00 30 00 D.H.0.0.

    0018: 32 00 00 00 07 00 00 00 2.......

    0020: 6d 00 61 00 73 00 74 00 m.a.s.t.

    0028: 65 00 72 00 00 00 e.r...

    Event Type:Error

    Event Source:MSSQLSERVER

    Event Category:(6)

    Event ID:17055

    Date:07/07/2009

    Time:10:30:04 PM

    User:NT AUTHORITY\SYSTEM

    Computer:ANDH002

    Description:

    3041 :

    BACKUP failed to complete the command BACKUP DATABASE [master] TO VIRTUAL_DEVICE='{3706E7A8-4791-4A87-8F76-E3029C2E0D3F}1' WITH SNAPSHOT,BUFFERCOUNT=1,BLOCKSIZE=1024

    For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

    Data:

    0000: e1 0b 00 00 10 00 00 00 á.......

    0008: 08 00 00 00 41 00 4e 00 ....A.N.

    0010: 44 00 48 00 30 00 30 00 D.H.0.0.

    0018: 32 00 00 00 07 00 00 00 2.......

    0020: 6d 00 61 00 73 00 74 00 m.a.s.t.

    0028: 65 00 72 00 00 00 e.r...

    The above 2 errors are comming for all databases... and further follwoing error...

    Event Type:Error

    Event Source:VSS

    Event Category:None

    Event ID:6013

    Date:07/07/2009

    Time:10:30:04 PM

    User:N/A

    Computer:ANDH002

    Description:

    Sqllib error: OLEDB Error encountered calling ICommandText::Execute. hr = 0x80040e14. SQLSTATE: 42000, Native Error: 3013

    Error state: 1, Severity: 16

    Source: Microsoft OLE DB Provider for SQL Server

    Error message: BACKUP DATABASE is terminating abnormally.

    For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

    Data:

    0000: 2d 20 43 6f 64 65 3a 20 - Code:

    0008: 53 51 4c 43 4f 4e 4e 43 SQLCONNC

    0010: 30 30 30 30 30 36 33 39 00000639

    0018: 2d 20 43 61 6c 6c 3a 20 - Call:

    0020: 53 51 4c 43 4f 4e 4e 43 SQLCONNC

    0028: 30 30 30 30 30 36 31 34 00000614

    0030: 2d 20 50 49 44 3a 20 20 - PID:

    0038: 30 30 30 30 32 33 33 32 00002332

    0040: 2d 20 54 49 44 3a 20 20 - TID:

    0048: 30 30 30 30 33 34 36 30 00003460

    0050: 2d 20 43 4d 44 3a 20 20 - CMD:

    0058: 43 3a 5c 57 49 4e 44 4f C:\WINDO

    0060: 57 53 5c 53 79 73 74 65 WS\Syste

    0068: 6d 33 32 5c 76 73 73 76 m32\vssv

    0070: 63 2e 65 78 65 20 20 20 c.exe

    0078: 2d 20 55 73 65 72 3a 20 - User:

    0080: 4e 54 20 41 55 54 48 4f NT AUTHO

    0088: 52 49 54 59 5c 53 59 53 RITY\SYS

    0090: 54 45 4d 20 20 20 20 20 TEM

    0098: 2d 20 53 69 64 3a 20 20 - Sid:

    00a0: 53 2d 31 2d 35 2d 31 38 S-1-5-18

    can anybody explain the errors?

    What could be the reason?

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