A service company using AyaNova received the following error message when logged in via WBI or via RI:
SAPI Filter ?C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll? could not be loaded due to a configuration problem. The current configuration only supports loading images built for a AMD64 processor architecture. The data field contains the error number. To learn more about this issue, including how to troubleshooting this kind of processor architecture mismatch error, see http://go.microsoft.com/fwlink/?LinkId=29349.
You may receive similar error with slightly different path (depending on your version of Framework, bit version etc).
Same as per this site, issue was due to two backslashes in folder path that once edited and saved, now able to log in again successfully.
[li]Opened IIS Manager and selected the IIS web server node
[/li][li]In the middle pane, browse to the IIS section and select ISAPI Filters
[/li][li]Expand the columns as required, looking for an Executable path with \ in it, then click Edit
[/li][li]From the above screenshot, change the \ to \ so the path reads: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll
[/li][li]Keep in mind that the folders Framework and Framework64 or the .NET version may change depending on your implementation.