We host a site on IIS 6 with use of the ajaxcontrol toolkit on asp.net 3.5 and use forms authentication. We have a large Mac user base and since moving to the the ajaxcontrol toolkit have had many complaints about our website hanging on our servers.
I've tried mulitple things to elminate the problem, including the shutting of partial page rendering in our scriptmanager tag. Some of the pages that hang barely having anything going in the back end. Such as a form to submit an email. Users are complaining it takes 5 minutes to load or submit the page. Our script timeout is set to 90 seconds so that's baffling as well.
The worst part is we can't really recreate the issue on our own macs. This issue seems to be with any Firefox 3.0+ on the mac. We have have used tools like httpscoop( a fiddler like tool) to try to find the problem as well as looking through the IIS logs. When looking through the logs the request never makes it to our server.
It almost seems like firefox is never letting go of http connnections and eventually hanging on random pages. I've considered shutting off keep alives to see if that would help the problem.
Has anyone else ever seen a problem like this. I'm completely out of ideas and having large number of ever growing angry customers.
Thanks