The report server is unable to access encrypted data. Apply a back-up key or delete all encypted data (rsEncryptedDataUnavailable)
I had to change the service account of SSRS from network service to domain account.
I took a backup of the encryption key. they I used to SSRS config tool to successfully change the service account to domain.
Then I also restored the key which I had backed up
However when I access any report I get the error
March 31st, 2011 4:34am
Solved it!
http://msdn.microsoft.com/en-us/library/ms156010.aspx
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March 31st, 2011 5:32am