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Event ID 3760

  Asked By: Umesh    Date: Mar 18    Category: Sharepoint    Views: 1677

This is the first time we have ever seen this error and Microsoft
doesn't say much on it. Everything on this server has been the same
for about a year now including the service account.

Any ideas why this happened?

MESSAGE:

SQL Database 'databasename' on SQL Server instance 'servername' not
found. Additional error information from SQL Server is included below.

CAnnot open database 'SharePoint_Sites' requested by the login. The
login failed. Login failed for domain\user (service account).

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4 Answers Found

 
Answer #1    Answered By: Mayur Mandal     Answered On: Mar 18

Possible reasons I have seen:

1. Lost connection to Active Directory from WFE and/or SQL Server - by far the
most common reason I see. Actually, it's been when DCs/GCs are behind a firewall
and/or IP address changes (oh, one customer was because they used AD clustering
and couldn't hold the virtual IP steady).
2. I/O overload
3. Incorrect aliasing setup
4. Some other authN anomaly or incorrect setup - maybe some others on here can
toss in their ideas?

I would try capturing data with wireshark if the pattern is predictable.

 
Answer #2    Answered By: Deana Lowery     Answered On: Mar 18

I believe we did patches, updates and reboots of a lot of our systems
that night. I will have to find out if AD was down at any time.

 
Answer #3    Answered By: Felecia Goff     Answered On: Mar 18

I know you say that everything has been the same, but is there any chance
that SSRS was recently installed?

Is the value of 'databasename' not the same as 'SharePoint_Sites'? Also,
what sort of DB is this?

 
Answer #4    Answered By: David Scott     Answered On: Mar 18

No SSRS recently installed and yes the 'databasename' is the same
as 'SharePoint_Sites'.

 
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