I have a problem with IIS 6.0 ceasing to work for an ASP.NET application after installing Service Pack 1 for .NET 3.5.
I have 2 identical virtual dedicated servers. Installing SP1 on the first had no adverse effect. Installing it on the second caused ASP.NET pages to start returning 404 page not found.
Static .html pages working okay on both servers.
Has anybody else experienced this?
This is broad problem, so let's start by asking some troubleshooting questions:
- Based on your description, the ASP.NET runtime is not catching your request and processing the aspx files. You may need to register the asp.net pipeline with IIS again using ASPNET_REGIIS -i.
- Have you made sure that the app_offline.htm file has been removed from the directory of the application? I have had this happen before after an update.
- Have you setup fiddler for instance to follow the request to see what is exactly being requested?
- Make sure ASP.NET is enabled in the IIS Administration Console under "Web Service Extensions." Make sure everything is set to allowed for your different versions of the framework.
Well, let's start with those and hopefully we can guide you to the problem.