“Validation of view state mac failed” Error in Reporting Services

Short time ago we found the following error when running Reports randomly in a web farm:   Validation of view state mac failed, this application is hosted by a web farm or cluster, ensure that machine key configuration specifies the same validation key and validation algorithm   If you find yourself with this error, you…

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Error “Unable to load client print control” when printing reports in Reporting Services (summary of possible causes and solutions)

  Due to the great confusion I perceive about this error and its possible causes and solutions, I decided to remove my 3 old posts that talked about this error and create a single and more complete posts that I hope helps you resolve all the possible causes of this error when trying to print reports in Reporting…

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How to disable this Font embedding in Reporting Services 2005 Service Pack 3?

  Before Service Pack 3, fonts weren´t embedded in the PDF file after when rendering the report to this format. The side effect is that the size of the file might be bigger.   Some people have asked if it is possible to revert back to the old behavior (without reverting back to the old…

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