Exchange 2010 DAG: AddClusterNode() failed with 0x80070005. Error: Access is denied.

If the witness server you specify isn’t an Exchange 2013 Preview or Exchange 2010 server, you must add the Exchange Trusted Subsystem universal security group to the local Administrators group on the witness server. These security permissions are necessary to ensure that Exchange can create a directory and share on the witness server as needed. If the proper permissions aren’t configured, the following error is returned:
Error: An error occurred during discovery of the database availability group topology. Error: An error occurred while attempting a cluster operation. Error: Cluster API “AddClusterNode() (MaxPercentage=12) failed with 0x80070005. Error: Access is denied.”

Update: you must add the Exchange Trusted Subsystem universal security group to the local Administrators group on the source database server.

Access denied By Business Data Connectivity on Sharepoint 2010

Creating External Content types and by using it we have created external list we may see this error: Access denied By Business Data Connectivity…

Solution simply:

  • Open Central Administration site.
  • Go to Manage service applications.
  • Go to Business Connectivity Application.
  • Select the External Content Type option from dropdown.
  • Select Set Permissions from context menu.
  • Give specific permission.
  • Hit OK.