I too am experiencing this same problem. I'm running an unmodified version of DNN 5.4.2 CE on my own dedicated server (W2008 64-bit, IIS7, SQL Server 2008 Standard Edition 64-bit). I'm been researching the problem for several weeks and haven't found any workable resolution. If admin users on any of my portals click on certain pages, they automatically get logged out. Our QA department has impersonated client admin accounts and have confirmed this behavior is consistent. We've tested exhaustively and it has nothing to do with the client because the behavior is consistent across all computers tested (numerous ones across the country), all OS's, all browsers tested, etc. The host account is unaffected. We are using the standard DNN authentication service provider.

We've systemically tested and found offending modules that if removed from a page, cause the problem to go away and behavior to return to normal. Unfortunately, there are several modules that cause this problem such as the DNN Feedback form, NavXP, iWeb Feedback Designer, Markit: Slideshow, and numerous others. We've gone in and disabled specialized modules such as ifinity URL Master and DNNMasters Multi-User Portal Sharing Xtreme that we thought might be playing a role. Then, we flushed all server and client cache and restarted everything but no such changes have made any difference.

This problem is so severe it's caused major project launch delays that are jeopardizing our business. Any insights would be greatly appreciated.

Thanks,
John

Laura,

This did the trick! When we added the affected admin accounts to the parent portal with the same permissions as on the child portal, the problem went away. Thanks bunch, I've posted this issue on numerous threads on several sites and this is the only resolution I've found. This seems to be a subtle bug in DNN. This saved me a ton of headaches.

Thanks again, John