500.21 Bad module “ManagedPipelineHandler” in its module list

Question

I am getting the error:

HTTP Error 500.21 - Internal Server Error Handler \"CloudConnectHandler\" has a bad module \"ManagedPipelineHandler\" in its module list

Answer 1

For me, I was getting this error message when using PUT or DELETE to WebAPI. I also tried re-registering .NET Framework as suggested but to no avail.

I was able to fix this by disabling WebDAV for my individual application pool, this stopped the 'bad module' error when using PUT or DELETE.

Disable WebDAV for Individual App Pool:

1. Click the affected application pool
2. Find WebDAV Authoring Tools in the list
3. Click to open it
4. Click Disable WebDAV in the top right.

This link is where I found the instructions but it's not very clear.