Occasionally, users on our Kentico built website get the following error: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenera...

Hello, Could you please post the exact code you are using? Best regards, Boris Pocatko

Hi Please download from: http://www.algarveweb.com/AWB_Media/EN/download/CMSWebPart.zip The code not working starts on Line 139 Thanks, Mike

Hello there I am trying to ad a common kentico webpart into a selfmade masterpage with webpartzones. I am doing this all over the kentiko GUI. No coding. And after choosing the webpart, actually this is the text/static HTML, I got the viewstate error shown in the screenh...

Please, disregard this post. Since I don't think there was a way to do it, I've created a User Control in which I use the ViewState to do this.

Hi.. I have the same problem. Where did you enable viewstate? Is it from kentico?

I worded this a bit wrong I don't want to disable the VIEWSTATE but rather the visibility of the web part.

I had to do something a little more custom, so I couldn't utilize that web part. Is Viewstate disabled for that web part?

In the invalid pages section of the web analytics module I have a list of invalid page links. But as I have several websites adding up to 100's of pages I have no idea where these invalid links are to locate and correct them. I have to try and guess and search through numerous...

This is a NEW site - not an upgrade. Version 11.0.14. View_CMS_Tree_Joined has definitely not been modified in any way. Database has deployed to the LIVE server and the site just throws the subject error. Have read the few other question posts that I could find talking about...