Recently a customer of mine is experiencing problems with their production environment.
The SharePoint 2010 farm consist of a single WFE server with several site collections and is installed on Windows server 2008 R2 SP1. The notables are:
- Public Website
Once they start using the publishing function from intranet to the public website a few times, they start having issues with creating certain kind of pages.
Starting from the occurrence of the error. About half of the type of pages / locations give the below listed error.
Loading this assembly would produce a different grant set from other instances. (Exception from HRESULT: 0x80131401)
An IIS reset does solve the issue temporary until a few new pages and publishing's later.
I found a few posts online relating this issue to Microsoft updates and hotfixes. At which an new update / hotfix resolves the problem.
Sadly this is not the case for this particular scenario.
Does anyone know possible causes for this problem and resolutions?
Please request any information you still need if the above description was incomplete.
In a hope to resolve the issue the following actions have been defined. I will update the results of these actions:
- Installing the newest Windows updates and hotfixes (action completed, bug not resolved)
- Installing hotfix: http://www.microsoft.com/en-us/download/details.aspx?id=28948 (action canceled, not applicable for the environment)
- Re-building and deploying all custom solutions after updating the development environment
- Resetting all application pool users passwords