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Event ID 3760

  Asked By: Umesh    Date: Mar 18    Category: Sharepoint    Views: 2602

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?


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).



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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